is the future of PDF translation.

Fast, Reliable PDF Translation for Professionals Using XLIFF

TransPDF ends the frustration of translating PDFs by converting them to good quality XLIFF for use with your own translation tools.

Simply upload your PDF to TransPDF and translate the XLIFF you get back using your own tools; the system supports a wide range including memoQ, Memsource and DejaVu. Upload your translated XLIFF and you will get a fully-formatted, translated PDF. Any post-editing can be done for FREE using Infix 7.

In the past, translating PDF documents has been a time-consuming process with translators forced to work with tools that don’t retain formatting, colours or fonts - tools that don't understand PDF. With TransPDF, this is no longer a problem!

This is an amazing technology!!

柳 英夫 / Hideo Yanagi, GCube LLC

How Does It Work?

TransPDF works with your existing tools to quickly create translated PDFs of the highest quality.

Watch the movie to get a feel for how the system operates or follow the step-by-step guide.

Upload your PDF

TransPDF will convert it to XLIFF and return it to you. If your PDF is a scan, it will first run it through OCR to make it editable.

Translate the XLIFF

Use your existing tools - SDL Trados Studio, memoQ, Memsource, DejaVu etc.

Upload your translated XLIFF

TransPDF will reconstruct the original PDF using your translated text. Clean-up translated PDFs using the free demo of Infix 7

Ready to translate a PDF? Sign-up up for free and get your 25 free credits.


memoQ TransPDF

memoQ Translator Pro 8.1 integrates directly with via our public API

Read their excellent step-by-step guide to translating PDFs using TransPDF from within memoQ.


Memsource TransPDF

Memsource integrates directly with via our public API.
You'll find TransPDF listed as one of the options in the PDF import filter section. Read the official press release about this and other new features launched in Memsource version 6.

Read our step-by-step guide to getting started with TransPDF and Memsource.

Microsoft Azure Translation

Microsoft Translator is a cloud-based machine translation service that does a remarkably good job of instantly translating between multiple languages. It's available from within TransPDF to translate your PDFs for you. Use it as a starting-point for a full translation or when you simply need to speed-read a PDF.

Read our step-by-step guide to using auto-translation. and your customer care transformed me into a great admirer of your company and services! Thanks!.

Andras Zsigmondi, Professional Translator

What Does It Cost?

Got an Infix License?

If you have a valid Infix license, TransPDF is free of charge except for PDFs needing OCR which incurr a charge of 1-credit per-page.

Infix licenses start at just $9.99 +VAT for a monthly subscription.

Not an Infix user?

If you don't have a valid Infix license, the cost of producing a translated PDF is just 1-credit per page. With credits costing as little as 15¢ when purchased in bulk, a typical PDF page of 350 words could cost just ¢0.0004 per word!

For example, a 50-page PDF of around 15,000 words could add around €8 to the cost of your project. But how many hours of work would you save? Anyone who has tried editing a PDF will know that putting a translation back into a 50-page PDF would take hours without TransPDF. Isn't your time worth more than that?

Per PDF Cost

With a valid Infix license Without a valid Infix license
PDF to XLIFF/CSV FREE 1 credit
Final PDF FREE 1 credit / page
OCR 1 credit / page 1 credit / page
Auto-Translate 1 credit / page 1 credit / page

1-credit for XLIFF or CSV generation. Fee for first page of Final PDF is waived meaning the net cost for translating a PDF remains 1-credit/page.

After paying for OCR or Auto-translate, all other fees are waived for that PDF. You never pay more than 1-credit per page.

To get you started, you get 25 free credits when you sign-up.

Need your own TransPDF server?

If you're concerned about privacy or need to process high volumes of PDFs, then you need your own TransPDF server.

With a dedicated server you have all it's resources to yourself - especially important when using our free API for automated processing. You'll also be able to offer security guarantees to your clients over and above those of the public TransPDF server.

Dedicated servers are hosted and managed by us in London. We ensure your service runs smoothly and apply updates to the system to ensure it stays in-step with the public server.

Prices start from just £100 / month which includes 5,000 credits and a minimum rental term of 12 months. Your server can grow to match your PDF translation demands with additional processing power and storage space. Just get in touch and we can increase it's capacity in minutes.

Contact us if you have any questions about the dedicated server offer.

Sainsbury Centre for the Visual Arts

The XLIFF parts however are all done in the cloud using their TransPDF website.  This is quite impressive and you can use this without the InFix PDF Editor at all.

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


TransPDF is smart: it helps translators deal with PDF quicker than ever before.

Fast and accurate

TransPDF handles text-reflow, style and font changes, meaning you don’t waste time with HTML and XML.

Say Yes to PDF Jobs

Time-consuming jobs are made simple, allowing you to tackle even large and complex PDF jobs in no time at all

Your Translation Tools

TransPDF works alongside your tools - SDL Trados Studio, memoQ, Memsource etc., so you don’t need to learn how to use new, unfamiliar software

100% Secure

The TransPDF Appliance offers total security for your PDFs since it runs on your own intranet. It is the same as the public TransPDF service in all other respects.

Automatic OCR

If you upload a PDF that comes from a scan, we'll convert it via OCR to an editable PDF.

No software required

All you need to start using TransPDF is a web browser and a PDF.
Nothing more.

PDF Previews

Keep clients and teams updated by showing your progress with side-by-side previews of original and translated documents

Auto Flight-check

Quickly check your documents and replace fonts when you need special characters. TransPDF will remember your choices for next time.

Pay-As-You-Go or Free

No ongoing fees, no commitments, and no hidden charges. Pay only for the pages you need.

Unlock The Potential Of PDF

Don't get bogged-down with layout, tags and code; concentrate on the words instead.
TransPDF handles the difficulties of the PDF format, leaving you to get on with the translation.

The end of tags

TransPDF generates XLIFF with very few in-line tags. All of the styling and font information is tracked and preserved, it's just kept out of your way to make translation easier.

PDF Previews

Side-by-side previews let you compare each newly translated PDF with the original, while watermarks enable you share previews with clients, safe in the knowledge they cannot be used commercially.

Public API

Developers are using the free public API to integrate Trans PDF into their tools and give their customers seamless access to PDF translation without having to leave their apps.

Ready to translate a PDF? Sign-up up for free and get your 25 free credits.

Need to Know More?

If you don’t see what you’re looking for, check our FAQ.

Can it handle scanned PDFs ?

Yes! Upload a scanned or 'dead' PDF and TransPDF will convert it to a real PDF with editable text. It then gets converted to XLIFF ready for translation as normal.

Do I have to pay again if I change my translation?

No. You only pay once for a page. After that you can alter the translation as many times as you like without incurring any extra charges.

Is there a public API available?

Yes. There is a fully documented API you can use to integrate smart PDF translation into your own applications for free.

The API package consists of a Python demo showing how to access all of the features such as uploading PDFs and exporting XLIFF. The underlying technology is HTTP-based so you don't need to use Python if you don't want to.

Are my PDFs secure ?

When you upload a PDF it is visible to you and only those whom you choose to share it with. Access to is all done via https (secure web access) which means your passwords and data are encrypted during transit.

If your clients insist of total security, we offer dedicated servers.

What is XLIFF ?

XLIFF is an industry standard XML-based format for translating all kinds of documents and is supported natively by leading tools such as SDL Trados Studio, memoQ, Memsource, Fluency, TransitNXT and others.

Can it handle right-to-left text such as Arabic?

Not yet, unfortunately. TransPDF can only handle languages written left-to-right. Some vertical text is also supported. This means the system is currently not suitable for Arabic, Hebrew etc.

Recent PDF translation blog posts