PDF Property Extension

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PDF Property Extension is a lightweight COM extension that brings back PDF properties and columns (like Title, Author, Subject, Comments) to Windows Explorer (File Explorer). It implements the IPropertyHandler interface for PDF files, required from Windows Vista® and later.

Works on Windows Vista®, 7, 8 and 10 (both x86 and x64).

How it works

Just install it and... nothing else.
Nothing to configure, when installation completes your Windows Explorer (File Explorer) will populate the additional columns (you need to show them by right clicking on the list header):

And the "File properties | Details" will show the new properties too:

Technical details

Starting from Windows Vista®, file properties subsystem was deeply changed and the old IColumnHandler support has been removed.
The new IPropertyHandler interface must be implemented to let custom file properties (like Title, Author, Comments) appear in Windows Explorer (File Explorer).

None of the free PDF viewers I know, including the official Adobe Reader®, implement the new interface.
Some of them implement the IFilter interface that makes properties available only to Windows Search.
A trick/workaround to show PDF properties is to write somethinf in the "search" box in the upper-right corner of Windows Explorer, like *.pdf, but it's an uncomfortable solution for me.

But starting a file search just to show PDF titles was too much for me, that's why I wrote PDF Property Extension.

Licensing

PDF Property Extension is free to use.
Donations are welcome, especially if you use it in a professional or business context.

Feedback & bug reporting

To report any issue you had with PDFPropertyExtension please use the dedicated forum here.

 
Version history 

v.1.15.0 - 2020-08-12

  • Added support for multiple dictionaries within the same PDF object.

v.1.14.0 - 2020-03-24

  • Added support for BOM-encoded Unicode strings in encrypted metadata.

v.1.13.1 - 2019-10-14

  • Fixed silent installer (/S switch) not working if another PDF handler is already installed on the system.

v.1.13.0 - 2019-01-11

  • Fixed setup procedure not allowing installation on Windows Vista.

v.1.12.0 - 2018-05-02

  • Fixed error in stream xref object content parsing leading to wrong line content length.
  • Upgraded setup script to NSIS 3.x (better compatibility with Windows 10).

v.1.11.0 - 2018-02-20

  • Added support for "System.Document.DateCreated" and "System.Document.DateSaved" Windows properties.
    NOTE: these date values are stored into PDF document so they could differ from filesystem "File created" and "File last modified" properties (file properties could change when copying/downloading/editing the PDF file itself).

v.1.10.0 - 2017-06-15

  • Added support for protected documents.
    NOTE: PDF document must be readable without any password required (empty user password).

v.1.9.0 - 2017-06-01

  • Added support for document page count.

v.1.8.3 - 2017-05-05

  • Fixed parsing of UTF8 encoded XMP objects.
  • Fixed parsing PDF documents with updated Xref tables.

v.1.8.2 - 2017-01-19

  • Fixed long hang and high CPU usage when parsing malformed/truncated files.

v.1.8.1 - 2016-10-21

  • Fixed infinite parsing loop for PDFs containing multiple plain Xref tables.

v.1.8.0 - 2016-10-17

  • Added support for encrypted files with unencrypted metadata.

v.1.7.0 - 2016-06-16

  • Added support for XMP metadata.
  • Added support for Xref table revisions.
  • Faster reading of PDF Xref tables.

v.1.6.0 - 2016-06-06

  • PDF parser now supports Xref tables with object references.

v.1.5.3 - 2016-05-16

  • Fixed internal inflate buffer sizing issues, leading to uncompressing failures for some PDF streams (and no metadata shown for these files).

v.1.5.2 - 2016-05-02

  • Added support to Company, Category and Keywords (Tags) properties.
  • Added command line version of the parser: PdfPropertyExtension.exe.
    It's stored in a system folder, so could be called from everywhere and used to automate metadata extraction.
  • Fixed memory access exceptions on some PDF files, leading to Explorer crash.
  • Optimized parser to fix possible memory address overflows.
  • Fixed parsing of (malformed) PDF files with offset pointing to the \r\n before "xref" tag.

v.1.5.1 - 2015-09-05

  •  Fixed parsing of PDF metadata containing escaped chars.

v.1.5.0 - 2015-06-24

  • Added support to PDF 1.6 XREF compressed table objects.
  • Fixed crashes caused by compressed stream content.

v.1.4.1 - 2015-04-29

  • Setup hangs on some systems.

v.1.4.0 - 2015-04-20

  • Added support for PDF keywords.
  • Fixed parsing of PDF files with HEX encoded values splitted over multiple lines.

v.1.3.1 - 2015-04-18

  • Fixed crash of Windows Explorer when parsing some PDF.

v.1.3.0 - 2015-02-12

  • New and faster PDF parser.
  • Added support to PDF-1.5 files, with encoded object-type XREF tables.

v.1.2.0 - 2015-01-09

  • Added support for "Subject" property.

v.1.1.0 - 2014-12-11

  • Optimized speed and memory of PDF parsing.
  • Fixed issues with PDF titles containing slashes "/".
  • Fixed crash with encrypted PDFs.
  • Windows Explorer now won't show misleading edit boxes for PDF missing properties anymore.

v.1.0.0 - 2014-11-03

  • First public release

 

Download

WARNING: Windows Vista® (or newer) is needed to run this software.

Mirroring, repackaging and any other way to redistribute my software to end users from outside coolsoft.altervista.org is FORBIDDEN! (unless expressly authorized).
Links to this page are welcome (do not use HTML #fragments and do not link the .exe file directly).

PdfPropertyExtension_1.15.0.exe
Description Current version
Release date 2020-Aug-12 Size 475,542 bytes
MD5 ee87cb4b33ed0718a9012e4579aa75d4
SHA1 8275d56b293ea76a30d4eb25c7a350ab58ddb117
SHA256 44cae6375a5d62baa78f0378020ab67f8dd415dbcbea7876034615d265667dca
Open virus check report
PdfPropertyExtension_1.14.0.exe
Description Previous version
Release date 2020-Mar-24 Size 476,071 bytes
MD5 5cac40ab645a3da90114891fd3fb30a0
SHA1 b422e3572a23f578c6d60d25b79aa1305d11ad05
SHA256 a5ec53214839d1c109cee0ca998c9583a98e5b170f04ac3b2a2b233b7f82a0fd
Open virus check report

Comments

PDF Property Extension now has its own forum, old comments were moved there.