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QPDF 5.1.2

Encrypt, decrypt or linearize PDF files

by Mike Williams

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License: Open Source
Operating Systems: Linux, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP
Requirements:
Languages: English
Software Cost: Free
Date Updated: 12 June 2014
Watchlist: Add download to my watchlist
Downloads To Date: 286
Developer: Jay Berkenbilt
RSS News Feed: http://sourceforge.net/api/file/index/project-id/224196/mtime/desc/limit/20/rss
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QPDF 5.1.2
Encrypt, decrypt or linearize PDF files

QPDF is a portable command line tool for processing PDF files.

The program can password-protect PDFs, or remove the encryption from an already protected file. There's an option to generate a linearized file (a web-optimised document, which can display the first page without downloading the whole thing). You can specify pages and page ranges from individual files, then export them to a new PDF. And QPDF offers advanced control over PDF streams (compression, normalization, object streams and more).

There's good attention to detail here. This isn't necessarily just about giving a PDF file a password; you can also set the encryption key length, and decide whether viewers can print the document, modify it, extract text or images, to allow annotations, and more.

Figuring out how to use all this takes some effort, even for a command line program. There are a lot of options, and the detailed documentation assumes you know precisely what you're doing.

For all that, you should have everything figured out with a little thought. A command like

qpdf --encrypt user-password owner-password 40 --print=n -- test.pdf test2.pdf

will take a file test.pdf, give it a 40-bit key, assign user and owner passwords, and disable printing, before exporting the results as test2.pdf. And while this may look complicated, work it out once and you can create a batch file or script to apply the same rules to multiple files, automatically, whenever you like.

Verdict:

QPDF has a good set of PDF processing tools, in particular for adding or removing password protection, and splitting or merging files. It's a little awkward to use, but if you're looking to automate your PDF handling with scripts then the program should be able to help.

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Spotlight: Free Full Software

Ashampoo Burning Studio 2013 (v11.0.6)

Free Full Commercial Software

Ashampoo Burning Studio 2013 is a compact, simple, but surprisingly feature-packed disc burning suite.

The program makes it easy to create simple data discs and audio CDs, for instance: just drag and drop your files onto the list area and you'll be burning the finished disc in a couple of clicks.

That's just the start, though. Burning Studio 2013 can also create data discs with customised, interactive multi-page menus, perfect if you'd like a more professional way to share and present the disc contents.

A built-in backup tool allows you to create backups which may be encrypted, compressed, and span several CDs, DVDs and Blu-rays.

And there are modules to create VCD or SVCD video projects; burn video DVDs or Blu-ray discs from prepared folders; create, browse or burn disc images (ISO, CUE/ BIN and Ashdisc formats are supported); copy discs, erase them, design and print disc covers, labels and booklets, and more.

The focus throughout is on ease of use, though, and so Ashampoo Burning Studio 2013 remains very straightforward, whatever you're doing. Most disc projects are created via the same simple interface, and for the most part all you have to do is drag and drop the necessary files. But experts will find more advanced options are only a click away, and if you need to then you can set ISO and UDF version, enable Joliet, make a disc bootable and more.

Note the download here will take you to the Downloadcrew Software Store where you can download Burning Studio 2013.

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