-
-
Einführung
- Lizenz
- Ubucon 2013
- Fahrplan der Ubucon 2013
- hier: Workshop zu “PDF-KungFoo mit Ghostscript & Co.”
- Hinweise zum Workshop
- Zielgruppe des Workshops
- Folgende Teilnehmer haben per TitanPad zum Protokoll des Workshops beigetragen:
-
Einführung
-
I Workshop-Themen
-
1 Workshop-Thema (Theorie): Innere Struktur des PDF-Formats
- 1.1 Header
- 1.2 PDF-Objekte
- 1.3 Objekt-Verweise
- 1.4 Oben verwendete Syntax-Elemente
-
1.5
xref-Tabelle - 1.6 Trailer
- 1.7 ‘Hello World’-PDF
- 1.8 Illustrierte Darstellung der ‘Hello World’-PDF
- 1.9 Weitere Resourcen zur PDF-Syntax
-
2 Workshop-Thema (Praxis): Die PDF, die zu gross war…
- 2.1 Frage: Warum also ist das vorliegende PDF so gross?
- 2.2 Metadaten der PDF anschauen
- 2.3 Wie kann man die weiteren o.a. Vermutungen/Spekulationen überprüfen?
- 2.4 Funktioniert Copy’n’Paste?
- 2.5 Wer hat schonmal mit einem Text-Editor im PDF-Code ‘herumgepfuscht’?
-
2.6 Kompression der PDF mittels
mutool clean - 2.7 Welche Fonts enthält die PDF? Sind sie eingebettet?
- 2.8 PDF aus Scan entstanden?
- 2.9 Enthält die PDF viele kleine Vektor-Objekte?
- 2.10 Wie kann man die Größe einzelner PDF-Objekte feststellen?
- 2.11 Wie findet man die Objekte mit den langen ‘Streams’?
- 2.12 Kann man Fonts aus einer PDF extrahieren? Wenn ja, wie?
- 2.13 Sind diese Fonts valide Font-Dateien?
- 2.14 Ist es überhaupt legal, einen Font aus einer PDF zu extrahieren?
- 2.15 Wie kriegt man die PDF kleiner?
- 2.16 Wer erinnert sich an ‘pdffonts’?
- 2.17 Wie groß sind die Untergruppen-FontFiles jetzt?
- 2.18 Was bedeutet die Vorsilbe vor dem Font-Namen?
- 2.19 Hat die durch Ghostscript geänderte PDF auch sichtbare Unterschiede bewirkt? Die PDF ‘verfälscht’?
- 2.20 ImageMagick verwenden, um Pixel für Pixel zu vergleichen, wo die Dateien unterschiedlich sind!
-
2.21 Was macht
compareeigentlich genau? Wie schafft es das Tool, PDFs zu verarbeiten?! - 2.22 Welche weiteren Optionen gibt es, um eine PDF kleiner zu kriegen?
- 2.23 Aber das war jetzt gefährlich! Warum?
- 2.24 Fragen, die während des Workshops aufkamen
-
1 Workshop-Thema (Theorie): Innere Struktur des PDF-Formats
-
Appendix
- Acknowledgements
PDF-KungFoo Workshop I
bei der "Ubucon 2013" (Ubuntu Community Event in Heidelberg)
(Deutsch-sprachiges) Protokoll eines Workshops zum (englischen) E-Book "PDF-KungFoo with Ghostscript & Co." -- abgehalten auf der Ubucon 2013 in Heidelberg, dem jährlichen Event der deutsch-sprachigen Ubuntu Community.
With Membership
Free!
$7.99
You pay
$7.99Authors earn
$0.00Cause gets
$6.39PDF
EPUB
WEB
44
Pages
7,323Words
About
About the Book
Zu diesem Protokoll haben mehrere Workshop-Teilnehmer beigetragen. Der (vorgeschlagene) Kaufpreis beträgt 4,99 $US -- dieser Preis kann jedoch durch den Käufer freiwillig erhöht oder auch auf 0,00 $US gesenkt werden. Die Autoren-Einnahmen gehen zu 100% an die Electronic Frontier Foundation (EFF).
Author
About the Authors
Kurt Pfeifle
Kurt has been coined "The Walking PDF Debugger" by several of his regular clients. They are right. Many of his problem solving skills in the last 10 years involved troubleshooting PDF processing systems in the Printing and Prepress Industry.
Kurt is a professional with more than 20 years of experience. After working for nearly 3 decades with the same employer (who in the process had 4 different names due to company mergers) he decided to freelance.
When working with customers, he prefers to use Free and Open Source Software whereever it works best. He is a commandline addict. As operating systems he prefers unix-oid types like Linux, Mac OS X and Solaris, but he is just as familiar with Windows and its cmd.exe too. These preferences were not pre-determined from the start: up until 1998 he used Windows 95 exclusively. His first tentative adventures with Linux started in that very year. In 1999, still very much a newbie with Open Source, he became one the first users and beta testers of a new printing subsystem called CUPS (Common Unix Printing System). In the following years, CUPS very fast became the pre-dominant printing interface in the Linux and Unix world and has meanwhile been adopted and even acquired by Apple for Mac OS X.
Kurt's "career" as an author of technical documentation started when he helped users with technical questions about printing in different internet forums and contributed written documentation to various FOSS projects, such as Samba, Linuxprinting.org and KDE.
Kurt is available for contract work:
Contents
Table of Contents
Get the free sample chapters
Click the buttons to get the free sample in PDF or EPUB, or read the sample online here
Causes
Causes Supported
Electronic Frontier Foundation
Defending your civil liberties in a digital world.
https://www.eff.org/Based in San Francisco, EFF is a donor-supported membership organization working to protect fundamental rights regardless of technology.
From the Internet to the iPod, technologies are transforming our society and empowering us as speakers, citizens, creators, and consumers. When our freedoms in the networked world come under attack, the Electronic Frontier Foundation (EFF) is the first line of defense. EFF broke new ground when it was founded in 1990—well before the Internet was on most people's radar—and continues to confront cutting-edge issues defending free speech, privacy, innovation, and consumer rights today. From the beginning, EFF has championed the public interest in every critical battle affecting digital rights.
The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.
You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!
So, there's no reason not to click the Add to Cart button, is there?
See full terms...
Earn $8 on a $10 Purchase, and $16 on a $20 Purchase
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $14 million writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Write and Publish on Leanpub
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.