PDF - Revision history

Simsong: /* PDF Tools */

2011-08-13T20:17:11Z

‎PDF Tools

Simsong: /* PDF Tools */

2011-08-13T20:16:47Z

‎PDF Tools

Hypertex at 18:43, 9 April 2010

2010-04-09T18:43:59Z

Hypertex: Added additional information about metadata and file format; inserted list of pdf tools

2010-04-09T18:43:16Z

Added additional information about metadata and file format; inserted list of pdf tools

Hypertex: Updated format info--open standard.

2010-04-09T15:40:17Z

Updated format info--open standard.

Simsong at 22:02, 25 May 2009

2009-05-25T22:02:35Z

Simsong: /* See Also */

2009-03-07T01:28:04Z

‎See Also

Simsong: /* See Also */

2009-03-07T01:27:41Z

‎See Also

Simsong at 02:42, 6 October 2008

2008-10-06T02:42:21Z

Simsong at 02:41, 6 October 2008

2008-10-06T02:41:16Z

@@ Line 52: / Line 52: @@
 ; pyPdf
 : http://pybrary.net/pyPdf/
-; "A Pure-Python library built as a PDF toolkit."
+: "A Pure-Python library built as a PDF toolkit."
-; Will encrypt and decrypt PDF files.
+: Will encrypt and decrypt PDF files.
 ; QPDF

@@ Line 32: / Line 32: @@
 === PDF Tools ===
+These tools are useful for analyzing PDF files:
 ; Origami
 : http://security-labs.org/origami/
@@ Line 38: / Line 38: @@
 ; PDF Tools
-: [http://blog.didierstevens.com/programs/pdf-tools/]
+: http://blog.didierstevens.com/programs/pdf-tools/
 : Didier Stevens' pdf-parse and pdfid, written in Python
@@ Line 44: / Line 44: @@
 : http://www.757labs.com/projects/pdfresurrect/#downloads
 : Retrieves previous versions of PDF files that have changes appended with "incremental updates"
 ; QPDF
 : http://sourceforge.net/projects/qpdf/
 : Open source, cross-platform library and set of programs to inspect and manipulate PDF files. Packaged in recent Debian based distributions.
 == External Links ==

@@ Line 60: / Line 60: @@
 * [[Arabic PDFs]]
 * [[Tools:Document Metadata Extraction]]
-* [[Category:File Formats]]

@@ Line 1: / Line 1: @@
-The '''Portable Document Format''' ('''PDF''') is a document format from [[Adobe]] Inc. It is widely available on the web. Originally developed as a propriety format, it was released as an open standard in 2008. The standard is published as ISO/IEC 32000-1:2008.
+The '''Portable Document Format''' ('''PDF''') is a document format from [[Adobe]] Inc. It is widely available on the web. Originally developed as a propriety format, version 1.7 was released as an open standard in 2008. The standard is published as ISO/IEC 32000-1:2008. Although an open standard, Adobe still owns patents and copyrights related to the PDF standard. Adobe has granted a worldwide royalty-free license to produce PDF software, but only if the software complies with the PDF standard.
 == Format ==
-Each file begins with the string <tt>%PDF</tt>. Each block ends with the letters <tt>EOF</tt>, but there can be multiple <tt>EOF</tt>'s in a single file (this often confuses programs like [[foremost]] that search for footers).
+It is a common misconception that PDF files are simply a collection of images, one per page.  Certainly a PDF can be formed that way (which is typical of document scanners), but in reality the document structure is much more complex.  A PDF file can contain text streams (which cam be encoded and/or compressed in dozens of ways), vector and raster images, fonts, and various interactive elements.
 == Metadata ==
 The metadata (or parts of it) can be extracted with [[pdfinfo]], a utility which is part of the [[xpdf]] package.
@@ Line 11: / Line 16: @@
 == Embedded Objects==
-You can use [[pdfimages]], part of the [[xpdf]], to extract all of the images out of a PDF file and put each in its own file.
+The PDF standard supports embedding many types of files such as images. Embedded files may contain their own metadata. You can use [[pdfimages]], part of the [[xpdf]], to extract all of the images out of a PDF file and put each in its own file.
 == External Links ==
@@ Line 20: / Line 54: @@
 * [http://en.wikipedia.org/wiki/PDF Wikipedia: PDF]
 * [http://www.mactech.com/articles/mactech/Vol.15/15.09/PDFIntro/ Portable Document Format: An Introduction for Programmers], MacTech Magazine, Volume 15, (1999), Issue 9
 =See Also=

← Older revision		Revision as of 15:40, 9 April 2010
Line 1:		Line 1:
−	The '''Portable Document Format''' ('''PDF''') is a ~~proprietary~~ document format from [[Adobe]] Inc. It is widely available on the web.	+	The '''Portable Document Format''' ('''PDF''') is a document format from [[Adobe]] Inc. It is widely available on the web. Originally developed as a propriety format, it was released as an open standard in 2008. The standard is published as ISO/IEC 32000-1:2008.

	== Format ==		== Format ==

← Older revision		Revision as of 02:42, 6 October 2008
Line 11:		Line 11:
	== Embedded Objects==		== Embedded Objects==

−	You can use [[pdfimages]], part of the [~~http://www.foolabs.com/~~xpdf ~~xpdf package~~], to extract all of the images out of a PDF file and put each in its own file.	+	You can use [[pdfimages]], part of the [[xpdf]], to extract all of the images out of a PDF file and put each in its own file.

← Older revision		Revision as of 02:41, 6 October 2008
Line 8:		Line 8:

	The metadata (or parts of it) can be extracted with [[pdfinfo]], a utility which is part of the [[xpdf]] package.		The metadata (or parts of it) can be extracted with [[pdfinfo]], a utility which is part of the [[xpdf]] package.
		+
		+	== Embedded Objects==
		+
		+	You can use [[pdfimages]], part of the [http://www.foolabs.com/xpdf xpdf package], to extract all of the images out of a PDF file and put each in its own file.
		+
		+

	== External Links ==		== External Links ==