Slide background Editing PDF is
Plain Sailing
with Infix 7
Try It For Free! Buy from $9.99 Slider Image
Slide background Slider image Slider image Find & replace in PDF just like a word processor Try It For Free! Buy from $9.99
Slide background Works like a word processor Deep editing of any PDF Copy graphics and text No-nonsense Interface Try It For Free! Buy from $9.99 Slider Image
Slide background Slider image Translators - compare your translation to the original PDF, side-by-side. Try It For Free! Buy from $9.99

Ready to edit PDF? Download the free trial for Mac or Windows

THE PDF Word Processor

Infix works like a normal word processor, so it’s really easy to use. It’s easy and quick – change text, fonts, images and more.
No interface gimmicks, no ribbons!

Deep PDF Editing

Change a single word, a paragraph, or an entire page. Infix covers your back, reflowing and reformatting text to keep it looking good. Once you’ve saved a file, you can’t even tell it’s been edited.

Time-Saving Features

Advanced Find & Replace, Translation, Bates numbering, OCR, Headers & Footers... Infix offers powerful tools designed to solve real-world PDF problems.

This is really a wonderful tool

Blog post by Paul Filkin, Client Communities Director, Language Solutions, SDL Plc

Feature Highlights

Find out what's new in version 7.
Here's a selection of some of the features available.

Easy Text Editing

Edit all text in a PDF, change fonts, size, colour - all aspects can be modified.

Learn More

Find & Replace

Search all the text in your PDF and replace words and phrases. You can even search through multiple PDFs.

Learn More

Spell Checker

Check your documents' spelling in any of 15 different languages.

Learn More

PDF Creation

Turn any document into a PDF just by printing it with the Infix printer.

Learn More

Find & Redact

Have complete confidence that sensitive information can be put permanently out of reach.

Learn More

PDF to HTML, ePub

Convert PDF to on-line formats with images, bookmarks and hyperlinks.

Learn More


Free use of cutting-edge translation facilities from using XLIFF - an industry standard format used by professional translation tools.

Learn More


Add notes, marks, shapes and text highlights. See all comments in the comments catalogue.

Learn More

Bates Numbering

Apply consistent cross-document numbering to PDFs and PDF portfolios. Apply headers & footers too.

Learn More

Infix 7

Enjoy free use of

TransPDF is an on-online service that converts PDFs to XLIFF and back again.

Use your own CAT tools (SDL Trados Studio, Memsource etc.) to translate the XLIFF. Once translated, Infix uses TransPDF to make a new translated PDF for you. Learn more.

Infix 7 talks directly to TransPDF so you don't need to leave the application to upload PDFs, download XLIFF, get previews or final PDFs. It also contains advanced flight-checking specifically designed for PDFs translated using TransPDF. Learn more.

With a valid Infix 7 license, you can use all the facilities of free of charge.

Infix PDF Editor's version 7... has made definite and clear inroads toward making this tool an option that translators need to be aware of...

The Tool Box Journal, Issue 264 - International Writers' Group

Attention To Detail

Since its launch in 2005, Infix has been continuously evolving.
We don't just add features for the sake of it, but usually as a direct result of feedback from customers.

pencils in a row

Rapid Technical Support

During your license period you'll benefit from unlimited support and updates - we'll be there to help should you need it. You'll also get new features and releases to ensure Infix continues to cope with all the complexities of PDF now and in the future.

On-Line License Management

You can view and monitor every Infix license your company owns in real-time. See on which machines the software is installed and when it was last used. You can also de-activate licenses when you need to retire a computer.

Windows & Macintosh

Infix works on both Windows and Macintosh computers. Your license is interchangable so if you ever decide to change your operating system, you can take your license with you.

We highly recommend Infix Pro for small or large projects. Please consider Infix Pro as your company standard for PDF editing. We did!

Gretchen Tresch

Ready to edit PDF? Download the free trial for Mac or Windows


  • Use of
  • Includes support & upgrades

$9.99 +VAT

Single User One-off Payment

  • 1 year's use of
  • 1 year's support & upgrades

$99 +VAT

Multi UserVolume Discounts

Users Discount
5+ 5%
10+ 10%
25+ 15%
50+ 20%
100+ 30%
250+ 35%
500+ Contact Us

Free Upgrades Available

Free Upgrade

If you purchased Infix within the last 12 months, you can use Infix 7 for free until 12 months after your initial purchase. For example, if you bought Infix 4 months ago, you can use version 7 for free for the next 8 months.

Even if you purchased more than a year ago, you can still use Infix 7 free of charge for a month.

Are you eligible?

Yes, if you have a license for Infix 6.

When you install Infix 7 it will run in demo mode until you activate with your Infix 6 license key. If you've forgotten your license key you can search for it in our database.

Subscription: The Smart Way

"By 2020, more than 80 percent of software vendors will change their business model from traditional license and maintenance to subscription." - Gartner

  • You always have access to the latest and greatest version of Infix
  • You get peace of mind with email and telephone support
  • You get feature requests sooner rather than waiting for the traditional upgrade cycle
  • You know the cost - small, monthly payments instead of a lump-sum every 12-18 months
  • There's no contract - cancel at any time
  • You can start/stop your subscription as you need
  • You avoid steep learning curves that often come with a major upgrade - instead the software gradually evolves
  • You avoid phoney 'features' added to sweeten an otherwise expensive or irrelevant upgrade

Ready to edit PDF? Download the free trial for Mac or Windows


We always welcome short blog entries from our users and post them on our website in the hope that other visitors will find their experiences useful when making a purchasing decision. Here are extracts from just a few happy users.

Music Manuscript Rachel Lister Pianist

"Infix PDF is definitely more powerful then Adobe Acrobat Pro when it comes to modifying a PDF. It is easier and more intuitive to modify the font of a text, making it bigger or smaller or put it in bold. And it also allowed me to move text where Acrobat Pro would not let me move it!"

Legal papers Thomas Primrose Legal Professional

"Infix appears to be just the standalone program that I and many colleagues have been looking for - the alternative to date has involved multiple programs and complicated workflows. In Infix it's as simple as point, click, delete and save."

Translation Miljenko Rafaj Translation Agency

"I succeeded to translate PDF document without any help of my co-workers from the DTP department. Infix Pro Editor is an amazing tool. I am grateful that I found such a useful assistance for my translation work. I invite all translators to try it out."

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MacOSX 10.8 or above including
Yosemite, Mavericks, El Capitan

  • 32-bit or 64-bit
  • 2 GB Ram
  • 2 GHz CPU
  • 450 MB Disc Space
  • Internet Connection
Windows Logo


Windows 2003, XP, Vista,
Windows 7, 8, 8.1, 10

  • 32-bit or 64-bit
  • 2 GB Ram
  • 2 GHz CPU
  • 110 MB Disc Space
  • Internet Connection
Linux Logo


Runs under Wine (free Windows compatibility environment)

  • 32-bit or 64-bit
  • 2 GB Ram
  • 2 GHz CPU
  • 300 MB Disc Space
  • Internet Connection