DOCSLIB.ORG

Introduction to Digital Signatures -Part Two

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Introduction to Digital Signatures -Part Two PDHonline Course G463 (6 PDH) _______________________________________________________________________ Introduction to Digital Signatures -Part Two- Daryl S. Banks, PSM 2013 PDH Online | PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088 www.PDHonline.org www.PDHcenter.com An Approved Continuing Education Provider www.PDHcenter.com PDHonline Course G463 www.PDHonline.org TABLE OF CONTENTS INTRODUCTION .......................................................................................................................... 6 Abstract ....................................................................................................................................... 6 Assumptions ................................................................................................................................ 7 Prerequisite Documents .............................................................................................................. 7 Audience and Document Conventions........................................................................................ 8 About the Author ........................................................................................................................ 9 METHODS FOR SECURITY ........................................................................................................ 9 Password Protect ....................................................................................................................... 10 Message Encryption .................................................................................................................. 10 Digital Signatures...................................................................................................................... 12 Applications .......................................................................................................................... 14 One-Way Hash .......................................................................................................................... 17 CREATING AND USING SELF SIGNED CERTIFICATES ..................................................... 19 Review of Certificates............................................................................................................... 19 Distinguished Names ................................................................................................................ 20 What are Self-Signed Certificates ............................................................................................. 20 When to use Self-Signed Certificates ....................................................................................... 21 How to Create and use Self-Signed Certificates ....................................................................... 22 CREATING A CUSTOMIZED DIGITIZED SIGNATURE FOR PDF ...................................... 25 Setting up Your Digitized Signature ......................................................................................... 25 Add a Timestamp to Signatures ................................................................................................ 25 Configure a Timestamp Server ............................................................................................. 26 Set a Timestamp Server as the Default ................................................................................. 26 Implementing the Signature ...................................................................................................... 28 Setting up Digital Signature Validation .................................................................................... 29 USING SELF-SIGNED CERTIFICATES FOR DIGITAL SIGNATURES ............................... 31 Self-Signed Certificates for Certified, Non-Encrypted Digital Signatures ............................... 32 Self-Signed Certificates for Certified, Encrypted Digital Signatures ....................................... 33 ©2013 Daryl S. Banks Page 1 of 96 www.PDHcenter.com PDHonline Course G463 www.PDHonline.org Custom Certificate Definite Encoding Rules ............................................................................ 35 Create a Primary and Secondary Self-Signed Certificate ......................................................... 35 Implementing the Digital Signature .......................................................................................... 42 Distributing the Certified Document ........................................................................................ 44 USING SELF-SIGNED CERTIFICATES FOR MESSAGE ENCRYPTION ............................ 45 Create a Primary and Secondary Self-Signed Certificate ......................................................... 45 Implement the Message Encryption .......................................................................................... 47 Distribute the Encrypted Document.......................................................................................... 48 ENCRYPTING AND SIGNING WITH A THIRD PARTY DIGITAL ID ................................. 48 UNDERSTANDING HOW PDF CONVERTS TO CAD FORMATS ........................................ 49 Advances in Technology........................................................................................................... 49 Raster to Vector ........................................................................................................................ 49 Conversion Techniques ............................................................................................................. 51 PostScript .............................................................................................................................. 51 Bézier Curves ........................................................................................................................ 51 Vector File Formats .............................................................................................................. 52 Resolution Types ...................................................................................................................... 53 Image Resolution .................................................................................................................. 53 Monitor Resolution ............................................................................................................... 55 Printer Resolution ................................................................................................................. 55 HOW TO PREVENT PDF FILES FROM BEING REVERSE ENGINEERED ......................... 57 Understanding PDF Print Resolution........................................................................................ 57 Understanding Text Fonts ......................................................................................................... 58 Microprinting ............................................................................................................................ 59 QR Codes .................................................................................................................................. 60 Flatten and Clean the PDF ........................................................................................................ 61 Find and Remove Hidden Content ........................................................................................ 62 Remove Hidden Information Options ................................................................................... 62 Redact (Black Out and Remove) Sensitive Content ............................................................. 64 Discard Objects Panel ........................................................................................................... 64 ©2013 Daryl S. Banks Page 2 of 96 www.PDHcenter.com PDHonline Course G463 www.PDHonline.org Discard All Form Submission, Import and Reset Actions .................................................... 64 Flatten Form Fields ............................................................................................................... 64 Discard All JavaScript Actions ............................................................................................. 64 Discard All Alternate Images................................................................................................ 64 Discard Embedded Page Thumbnails ................................................................................... 64 Discard Document Tags ........................................................................................................ 65 Convert Smooth Lines to Curves .......................................................................................... 65 Detect and Merge Image Fragments ..................................................................................... 65 Discard Embedded Print Settings ......................................................................................... 65 Discard Embedded Search Index .......................................................................................... 65 Discard Bookmarks ............................................................................................................... 65 Discard User Data Panel ....................................................................................................... 65 Discard All Comments, Forms and Multimedia ................................................................... 65 Discard Document Information and Metadata
Load more

Recommended publications
  • The Security Printing Practices of Banknotes
    The Security Printing Practices of Banknotes A Senior Project presented to the Faculty of the Graphic Communication California Polytechnic State University, San Luis Obispo In Partial Fulfillment of the Requirements for the Degree Graphic Communication; e.g. Bachelor of Science by Corbin Nakamura March, 2010 © 2010 Corbin Nakamura Table of Contents Abstract 3 I - Introduction and Purpose of Study 4 II - Literature Review 7 III - Research Methods 22 IV - Results 28 V - Conclusions 34 2 Abstract Counterfeit goods continue to undermine the value of genuine artifacts. This also applies to counterfeit banknotes, a significant counterfeit problem in today’s rapidly growing world of technology. The following research explores anti-counterfeit printing methods for banknotes from various countries and evaluates which are the most effective for eliminating counterfeit. The research methods used in this study consists primarily of elite and specialized interviewing accompanied with content analysis. Three professionals currently involved in the security- printing industry were interviewed and provided the most current information about banknote security printing. Conclusions were reached that the most effective security printing methods for banknotes rest upon the use of layering features, specifically both overt and covert features. This also includes the use of a watermark, optical variable inks, and the intaglio printing process. It was also found that despite the plethora of anti-counterfeit methods, the reality is that counterfeit will never be eliminated. Unfortunately, counterfeit banknotes will remain apart of our world. The battle against counterfeit banknotes will have to incorporate new tactics, such as improving public education, creating effective law enforcement, and relieving extreme poverty so that counterfeit does not have to take place.
    [Show full text]
  • Advanced High Resolution Video Spectral Comparator Regula 4308S
    Certified Quality Management System ADVANCED HIGH RESOLUTION VIDEO SPECTRAL COMPARATOR REGULA 4308S a revolutionary approach to Advanced Document Examination System... The Advanced High Resolution Video Spectral Comparator REGULA 4308S is a new generation device that allows for advanced document examination of outstanding quality. Regula 4308S enable the expert to authenticate passports, ID cards, travel documents, passport stamps, banknotes, driving licenses, vehicle registration certificates and other vehicle related documents, signatures and handwritten records, paintings, revenue stamps, etc. REGULA 4308S Video Spectral Comparator INTRODUCTION & FUNCTIONALITY OVER 28 YEARS ON THE HIGH-TECH MARKET, MORE THAN 90 PARTNERS ALL OVER THE WORLD UNIQUE CAPABILITIES OF REGULA 4308S •MANUFACTURING DEVICES FOR DOCUMENT AUTHENTICITY CONTROL; REGULA PRODUCTS AND SOLUTIONS ARE USED BY LAW ENFORCEMENT •DEVELOPING SOFTWARE FOR OPERATING THESE DEVICES, PROCESSING, EXPERTS FROM EUROPE, MIDDLE EAST, ASIA, AUSTRALIA AND NEW ZEALAND, COMPARING AND STORING THE OBTAINED DATA; SOUTH AND NORTH AMERICA. •CREATING INFORMATION REFERENCE SYSTEMS OF TRAVEL DOCUMENTS, SINCE THE 1990S, THE COMPANY HAS BEEN PRODUCING EFFICIENT DEVICES DRIVING LICENSES AND BANKNOTES. THAT HAVE NO ANALOGUES IN THE WORLD •PROVIDING PROFESSIONAL ASSISTANCE ALL OVER THE WORLD. A HI-TECH SOLUTION IN THE FIELD OF QUESTIONED DOCUMENT EXAMINATION. The REGULA 4308S is made as a single unit for desktop use. It is used with a built- in PC (may be connected to an external PC via USB 3.0) and
    [Show full text]
  • Xerox® Freeflow® VI Compose User Guide © 2020 Xerox Corporation
    Version 16.0.3.0 December 2020 702P08479 Xerox® FreeFlow® VI Compose User Guide © 2020 Xerox Corporation. All rights reserved. XEROX® and XEROX and Design®, FreeFlow®, FreeFlow Makeready®, FreeFlow Output Manager®, FreeFlow Process Manager®, VIPP®, and GlossMark® are trademarks of Xerox Corporation in the United States and/or other countries. Other company trademarks are acknowledged as follows: Adobe PDFL - Adobe PDF Library Copyright © 1987-2020 Adobe Systems Incorporated. Adobe®, the Adobe logo, Acrobat®, the Acrobat logo, Acrobat Reader®, Distiller®, Adobe PDF JobReady™, InDesign®, PostScript®, and the PostScript logo are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. All instances of the name PostScript in the text are references to the PostScript language as defined by Adobe Systems Incorporated unless otherwise stated. The name PostScript is used as a product trademark for Adobe Systems implementation of the PostScript language interpreter, and other Adobe products. Copyright 1987-2020 Adobe Systems Incorporated and its licensors. All rights reserved. Includes Adobe® PDF Libraries and Adobe Normalizer technology. Intel®, Pentium®, Centrino®, and Xeon® are registered trademarks of Intel Corporation. Intel Core™ Duo is a trademark of Intel Corporation. Intelligent Mail® is a registered trademark of the United States Postal Service. Macintosh®, Mac®, and Mac OS® are registered trademarks of Apple, Inc., registered in the United States and other countries. Elements of Apple Technical User Documentation used by permission from Apple, Inc. Novell® and NetWare® are registered trademarks of Novell, Inc. in the United States and other countries. Oracle® is a registered trademark of Oracle Corporation Redwood City, California.
    [Show full text]
  • Prado-Glossary.Pdf
    Council of the European Union General Secretariat PUBLIC REGISTER OF AUTHENTIC TRAVEL AND IDENTITY DOCUMENTS ONLINE 2021 PRADO en GLOSSARY TECHNICAL TERMS RELATED TO SECURITY FEATURES AND TO SECURITY DOCUMENTS IN GENERAL (IN ALPHABETICAL ORDER) v. 8269.en.17+c4+add3 00P Preface This publicly available glossary, first issued in 2007, is an example of successful cooperation between European document experts from all European Union member states and Iceland, Liechtenstein, Norway and Switzerland who regularly meet in the Council's Working Party on Frontiers/False Documents – Mixed Committee. The purpose of this glossary is not only to explain technical terms used in document descrip tions in PRADO (PUBLIC REGISTER OF AUTHENTIC TRAVEL AND IDENTITY DOCUMENTS ONLINE), but also to promote the use of consistent terminology and contribute to mutual understanding as a basis for effective communication and for police and administrative cooperation – in 24 official EU languages. It is also intended to help raise awareness among those having to check identities and ID documents - document experts will not be able to decide on the authenticity of a questioned document unless suspicions are raised by PRADO users who ask their local police, or the responsible national contact point, for further guidance. Contributing to better communication and cooperation is a means of combating illegal immigration and organised crime and strengthens security at the external borders and elsewhere. I would like to thank all those who made it possible to produce this
    [Show full text]
  • Recent Library - Museum Acquisitions
    Uullcotin of The Untofn l"''alion•l tiff' t·ound•tion • . • 01'. R. C~rt~ld 1'11"'\tu..rtry. tdltlH' l'ubll.. h('d ~~~~h mon1h br The U n ~vln iNPlional Life- Jn .. u l'an~e Campl*nr. Fort W arne, Number 1618 Fort Wayne, Indiana July, 1972 Recent Library - Museum Acquisitions Editor'• Now: From Ume to timet. it hu boon Presidential Commemorative Medals our prartt~ to fe-aturto. in Li~" !Ar~. (Washington to Johnson). With the l.ibn\ry.MuK"Um t'('qUitition$. TM moet ~t election of Richard M. Nixon, the bulld5n devol~ to lhi• t.Oc1lc iA Number 1685, Man:.h, 1970, wbkh d~ri~ tbirte<tn it.tm• mint contributed, to all owners of the whleh have S'I'MU.Y ~nha.ne:ed ~ ~lthlblt. value set, a meda11ion in identical form and of aur MIJ.'Ie\lm. The rwent.ly ac.quirW itc:mtl size of the 37th President. ll•tOO In t.blt ls.w~ •re typlt.J a«Wnula.tk>n.s. •ome or which are of bt'torielll llisrniftcance. Now~ being- currently received, is while ot.ht'.._ mittbt be eontidered ~rlos or the first edition~ sterling silvet proof noveJUes whieh have con•identble &PPC!fl-1 to set of The Firot Ladi.. Of The U"ited t.ho C4L$Utll ''ie:ltor. States. The complete set will include .forty separate medals, as more thnn one lady served some presidents as Our Fallen Heroes a White Rouse hostess. Included with The death of Abraham Lincoln in the medallions, is a handsome album 1865 led Haasis & Lubreeht, Pub­ with an attractive pamphlet by Ger· lishers, 108 Liberty Street, New York, trude Zeth Brooks entitled First New York, to create a colored Htho~ Ladies Of The White Home.
    [Show full text]
  • Total Eclipse of the Stamp on What Is Sure to Be an Otherwise Both Photos on the Stamp Come Courtesy Bright Day on Aug
    JULY 1, 2017 | Volume 59 We welcome members with all levels of experience, from beginners to advanced membership is open to all persons of good character who are interested in philately. Total eclipse of the stamp On what is sure to be an otherwise Both photos on the stamp come courtesy bright day on Aug. 21, a shadow of Mr. Eclipse, who also goes by Fred will darken the land. Specifically, Espenak. Espenak is a retired NASA it will darken a 110-km stripe astrophysicist and, more important in this centered on the town of Lincoln instance, an amateur astronomer and expert Beach in Oregon at 10:18 AM with a camera. The photo featured on the Credit: U.S. Postal Service before moving in a southeasterly stamp is one he took in Libya in 2006. direction to Bonneau Beach, S.C., “I’m sure the term ‘awe inspiring’ came at 2:47 PM. into being after someone saw a total Die-hard solar eclipse 2017 fans eclipse,” Espenak gushes. Reflecting on have long ago staked out their viewing his first eclipse in 1970, he recalls, “There In this Issue: spots. And any eclipse laggards can is nothing else that comes close. I thought, check the National Aeronautics & Space ‘This can’t be once in a lifetime; I have to Administration website for detailed see another.’ ” maps. Meanwhile the Newscripts gang is And he did. “Since the early 1990s I have preparing by scrounging around the sofa been to every total eclipse,” Espenak says. cushions to come up with 49 cents for first That works out to 27 stakeouts around the class postage.
    [Show full text]
  • Cash Handling & Bank Supplies
    20122013 secure organize store BANKING | OFFICE | GOVERNMENT | HEALTHCARE | EDUCATION BANKING | OFFICE | GOVERNMENT | HEALTHCARE | EDUCATION 209-2011WD5-01 M1203375 ©2012 Eagle Direct, 1 Printers Drive, Hermon, ME 04401 800.675.7669 eagledirects.com Table of Contents Index Cash Handling & Bank Supplies 1-24 Cash Handling & Bank Supplies 1-24 Cash Boxes ....................................2-4 Coin & Currency.........................14-21 Security Pens 25-29 Security Cases ...............................5-6 Check Correction.............................22 Personal Security............................7-8 Document Jackets Signage 31-44 Specialty Security ..............................9 & Key Management......................23 Cash Drawers & Trays................10-12 Locking Options...............................24 Bags 45-74 Counterfeit Detectors.......................13 Security Pens 25-29 Security Cabinets 75-86 Antimicrobial Security Pens .......26-27 Pen Refills ........................................29 Organizers 87-99 Counter Security Pens .....................28 Index 101 Signage 31-44 FDIC & NCUA Logo Signs.........32-33 Changeable Desk Eagle direct Bank Counter & Teller Signs ......34-35 & Wall Signs ............................40-41 Our job is to make Your job easier! Desk, Counter & Wall Signs.......36-38 Ordering Information..................42-43 Perpetual Calendars........................39 Signage Order Form........................44 With prices on the rise more companies are trying to make their dollar go farther by becoming smart shoppers. At Eagle Direct we have an entire website dedicated to helping you save money, from helpful shopping tips, Bags 45-74 to information on new money saving services. Tamper-Evident Bags.................46-48 Transport & Mail Bags .....................63 Eagle Direct continues to lead the way with a Disposable Coin Bags.....................49 Post Office & Shipping Bags...........64 wide selection of Maine-made and made in Check & Currency Bags ............50-51 Bag Seals & Seal Presses..........65-66 USA products.
    [Show full text]
  • Tips, Tools and Techniques an Overview of Counterfeit Document
    Counterfeit Fraud Prevention – Tips, Tools and Techniques An Overview of Counterfeit Document Fraud and the Methods Available to Detect & Deter it. Sean Trundy, COO UVeritech, Inc. 1743 South Grand Ave., Glendora, CA 91740 www.fraudfighter.com 800.883.8822 Contents Introduction 3 Counterfeit Fraud 4 Counterfeit Currency 4 The Modern Face of Currency Counterfeiting 5 Currency Counterfeiting on the Rise 7 Types of Counterfeit Dollars 8 Counterfeit Negotiable Instruments 11 Money Orders 11 Cashier’s Checks (Official Checks) 12 Traveler Checks 13 Treasury Checks 13 Personal Checks 14 Store Coupons and Store Currency 14 Credit Cards, Gift Cards and Stored Value Cards 15 Counterfeit Fraud Losses 17 The Multiplier Effect 17 Detecting Counterfeit Instruments 18 Visible / Physical Document Inspection 18 Color Shifting Ink 18 Holographic Images 19 Thermal Ink 19 Intaglio Printing 20 Watermarks 20 Covert Feature Detection 21 InfraRed Printing 22 Magnetic Character Printing 23 Ultraviolet Inks 23 Scientific Analysis 25 Pattern Matching 25 Data Compare 26 Tools for Counterfeit Document Detection 27 Visible Review Aids 27 Magnifier/Jeweler’s Loop 27 Infra-Red Viewers 28 Magnetic Ink Detector Devices 29 UV Lights 30 Advanced Analysis Devices 31 Machine Readable Character Reading Devices 31 Data Compare Devices 32 Pattern Matching Devices 33 Hybrid Pattern Match/Data Compare Devices 33 Multi-Layered Approach to Fraud Detection 35 Conclusions 37 2 Introduction Worldwide financial losses resulting from counterfeiting have been significantly on the rise. Growth trends for criminal fraud of almost every type have shown a steady and consistent pat- tern of year-over-year increases. This is particularly true when one looks at recent behavior associated with the use of forged documents.
    [Show full text]
  • Seeing Double: a Diplopic Aesthetic in Experience and Performance Samuel S
    Southern Illinois University Carbondale OpenSIUC Research Papers Graduate School Fall 11-4-2010 Seeing Double: A Diplopic Aesthetic in Experience and Performance Samuel S. Sloan Southern Illinois University Carbondale, [email protected] Follow this and additional works at: http://opensiuc.lib.siu.edu/gs_rp Recommended Citation Sloan, Samuel S., "Seeing Double: A Diplopic Aesthetic in Experience and Performance" (2010). Research Papers. Paper 34. http://opensiuc.lib.siu.edu/gs_rp/34 This Article is brought to you for free and open access by the Graduate School at OpenSIUC. It has been accepted for inclusion in Research Papers by an authorized administrator of OpenSIUC. For more information, please contact [email protected]. SEEING DOUBLE: A DIPLOPIC ASETHETIC IN EXPERIENCE AND PERFORMANCE by Samuel Sloan B.S., Louisiana State University, 2007 A Research Report Submitted in Partial Fulfillment of the Requirements for the Master of Arts Degree Department of Speech Communication in the Graduate School Southern Illinois University Carbondale November 2010 RESEARCH REPORT APPROVAL SEEING DOUBLE: A DIPLOPIC ASETHETIC IN EXPERIENCE AND PERFORMANCE By Samuel Sloan A Research Report Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Arts in the field of Speech Communication Approved by: Dr. Craig Gingrich-Philbrook, Chair Dr. Elyse Pineau Graduate School Southern Illinois University Carbondale November 9, 2010 AN ABSTRACT OF THE REASEARCH REPORT OF SAMUEL SLOAN, for the Master of Arts degree in Speech Communications, presented on 25 October 2010, at Southern Illinois University Carbondale. TITLE: Seeing Double: A Diplopic Aesthetic in Experience and Performance MAJOR PROFESSOR: Dr. Craig Gingrich-Philbrook This investigation uses an autoethnographic approach to investigate the author's personal, phenomenological experience of diplopia, double vision, in order to apply the lived condition to an aesthetic form in performance.
    [Show full text]
  • Federal Register/Vol. 76, No. 58/Friday, March 25, 2011
    16862 Federal Register / Vol. 76, No. 58 / Friday, March 25, 2011 / Proposed Rules FEDERAL RESERVE SYSTEM Reserve System, 20th Street and Board authority to regulate any aspect of Constitution Avenue, NW., Washington, the payment system and any related 12 CFR Part 229 DC 20551. function of the payment system with 4 [Regulation CC; Docket No. R–1409] All public comments are available respect to checks. Subpart C includes from the Board’s Web site at http:// rules to speed the collection and return RIN No. 7100–AD68 www.federalreserve.gov/generalinfo/ of checks, such as rules covering the foia/ProposedRegs.cfm as submitted, expeditious return responsibilities of Availability of Funds and Collection of paying and returning banks, Checks except as necessary for technical reasons. Accordingly, your comments authorization of direct returns, AGENCY: Board of Governors of the will not be edited to remove any notification of nonpayment of large- Federal Reserve System. identifying or contact information. dollar returns, check indorsement ACTION: Proposed rule, request for Public comments may also be viewed standards, and same-day settlement of comment. electronically or in paper in Room MP– checks presented to the paying bank. 500 of the Board’s Martin Building (20th Subpart C’s provisions presume that SUMMARY: The Board of Governors and C Streets, NW.) between 9 a.m. and banks generally handle checks in paper (Board) is proposing amendments to 5 p.m. on weekdays. form. Since the provisions were adopted in 1988, however, banks have largely facilitate the banking industry’s ongoing FOR FURTHER INFORMATION CONTACT: migrated to an electronic interbank transition to fully-electronic interbank Dena L.
    [Show full text]
  • The Use and Counterfeiting of United States Currency Abroad, Part 2
    The Use and Counterfeiting of United States Currency Abroad, Part 2 The second report to the Congress by the Secretary of the Treasury, in consultation with the Advanced Counterfeit Deterrence Steering Committee, pursuant to Section 807 of PL 104-132 March 2003 Contents Preface........................................................................................................... iii Executive Summary...................................................................................... v Introduction....................................................................................................................v Findings Regarding Currency Abroad...........................................................................v The Introduction of the 1996-Series New Currency Design (NCD) and the Upcoming 2003-Series Design............................................................................................ vi Findings Regarding Counterfeiting............................................................................. vii Innovations to Combat Counterfeiting....................................................................... viii Recommendations........................................................................................................ ix 1 Introduction.............................................................................................. 1 1.1 Design of the Study .............................................................................................1 1.2 International Demand for the U.S. Dollar ...........................................................3
    [Show full text]
  • 8-Up Aperture Card Osmizáznamový Mikroštítek
    8-up aperture card osmizáznamový codebar čárový polohový kód mikroštítek collecting image sdružený mikrosnímek acetate base triacetátová podložka colombier formát kreslicího papíru activation bath aktivátor colour density barevná hustota active file pracovní archiv computer input microfilm zařízení CIM active microfilm aktivní computer output microfilmer zařízení mikrofilm,pracovní mikroštítek COM alphanumerics alfanumerické znaky contact copy kontaktní kopie ammonia process suché diazografické contact copying kontaktní kopírování vyvolávání contact film film pro kontaktní kopírování antihalation antihilace contact microprinting duplikace antihalation backing antihalační vrstva contact print kontaktní kopie antihalo-layer antihalační vrstva contact printer kontaktní kopie antiquarian formát kreslicího papíru contact printing kontaktní kopírování aperture okénko mikroštítku continuous recording průběžné aperture card mikroštítek snímkování aperture card selector mikroštítkové continuous tone image polotónový obraz vyhledávací zařízení contrast kontrast archival quality archivační trvanlivost conversion konverze archival standards archivační trvanlivost copier kopírka automatic coding strojové kódování copy kopie automatic indexing strojové kódování copy card duplikační mikroštítek automatic selection strojové vyhledávání copying kopírování back lighting prosvětlení copying equipment kopírka background pozadí corona charging koronové nabíjení background density hustota pozadí densitometer denzitometr base and fog density minimální hustota
    [Show full text]