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 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 Slider Image
Slide background Slider image Translators - compare your translation to the original PDF, side-by-side. Slider image Try It For Free! Buy from $9.99
Slide background Slider image Slider image Slider image Slider image Slider image Instant PDF Translations Auto-translate any PDF Supports 60+ languages including Arabic, Hebrew, Persian & Urdu Flip page layout for translations 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, Forms creation, PDF Comparison, 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 & Forms

Turn any document into a PDF just by printing it with the Infix printer. You can also create your own interactive PDF forms or edit forms provided by others.

Learn More

Find & Redact

Have complete confidence that sensitive information can be put permanently out of reach by redacting both text and image content.

Learn More

PDF to HTML, ePub

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

Learn More


XLIFF translation for professionals plus instant, automatic translation for when you need a quick result. Supports 60+ languages including bi-di languages - Arabic, Hebrew, Persian and Urdu.


Add notes, marks, shapes and text highlights. See all comments in the comments catalogue grouped by page, type and author for easy navigation.

Learn More

Bates Numbering

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

Learn More

Compare PDFs

Quickly highlight the differences between two documents. Look at the differences side-by-side or via a point-and-click summary. Focus on graphical of textual differences.
Learn more...

Digitally Signed PDFs

Sign your PDFs with your own digital certificate and interrogate signed-PDFs to be sure they are from a trusted source.

Learn More

PDF1/A for Achiving

Encapsulate all the fonts and features needed to ensure your PDFs will look the same no matter when they are viewed.

Infix 7

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

Use your own CAT tools (memoQ, SDL Trados Studio, Phrase TMS etc.) to translate the XLIFF. Once translated, Infix uses TransPDF to make a new PDF using your translation. 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 problem reporting specifically designed for PDFs translated using TransPDF.

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 interchangeable 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

Monthly Subscription

  • Support & upgrades
  • Always have the latest software


Single User One-off Payment

  • 1 year's support & upgrades
  • Discounts for 5+, 10+, 20+ users


Enterprise250-User License

  • 1 year's support & upgrades
  • Real-time license-usage monitor


Upgrades & Enterprise Licensing


There is no specific upgrade product for Infix 7. Instead we reduced the price of Infix 7 to match the old upgrade pricing.


To renew your 12 month's support & maintenance, purchase a new Single User annual license. If you use the 'Renew' link shown in the reminder pop-up in Infix, you'll be able to keep your existing key-code.

Enterprise Licenses

We offer an Enterprise licence covering up to 250 users with a single license key. You can monitor usage of the license in real-time allowing you to keep tabs on your requirements.

To renew or upgrade an enterprise license, first check the number of licenses you need using License Management. For versions prior to 7, contact us and we'll tell you how many licenses you have used.

Subscription: The Smart Way

  • Get the latest version of Infix
  • Peace of mind with email and telephone support
  • No contract - cancel at any time
  • Know the cost - small, monthly payments instead of a lump-sum every 12-18 months
  • Start/stop your subscription as you need
  • Avoid steep learning curves that come with a major upgrade - instead the software gradually evolves
  • Avoid unwanted 'features' added to sweeten an irrelevant upgrade
  • Get feature requests sooner rather than waiting for a long upgrade cycle

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."

Apple Logo


MacOSX 10.11 to 13.6

  • 64-bit Apple Silicon or Intel CPU
  • 2 GB Ram
  • 2 GHz CPU
  • 1.5GB Disc Space
  • Internet Connection
Windows Logo


Windows 2003, Vista,
Windows 7, 8, 8.1, 10, 11

  • Intel CPU
  • 2 GB Ram
  • 2 GHz CPU
  • 1GB Disc Space
  • Internet Connection
Linux Logo


Runs under Wine (free Windows compatibility environment)

  • Intel CPU
  • 2 GB Ram
  • 2 GHz CPU
  • 1GB Disc Space
  • Internet Connection

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