With Infix 7 you can convert a PDF to XLIFF and put translated XLIFF back into the PDF to get a new, translated PDF.
Once open, choose Translate->Export to XLIFF from the menu bar.
This will begin the process of sending your PDF to transpdf.com where it will be converted into XLIFF.
If you're not already logged-in, Infix will ask you for the login details of your transpdf.com account.
Use of transpdf.com is free for Infix license-holders so if you don't already have an account, click on Need an account to create one.
After a short delay, you'll get back the XLIFF version of your PDF. Save this and then translate it using your own translation tools. All tools support the XLIFF format and will have no trouble reading it.
Drag & Drop the translated XLIFF onto an open Infix window.
After uploading a translation, Infix will ask you if you want to see a preview PDF. This is a good way to see how well the translation fits into the original PDF. Being read-only, you can also safely send this version to clients to give them a idea of progress.
Infix will ask if you want to compare the preview to the original. You can compare each side-by-by or one above the other - choose whichever best fits the shape of the document. Or you can just open the preview on its own - Normal view.
As you navigate around the preview, the original moves in lock-step, making it easy to compare the two even when zoomed-in.
Though your preview is read-only, you can still add comments and annotations for others to read.
After finishing the translation work in your CAT tool, you'll want to start editing the PDF and for that you'll need more than a preview.
Import your finished XLIFF as before but say 'No' when Infix asks if you want to open the preview. Instead choose Translate->Buy Final... from the menu bar.
Infix 7 license holders don't pay anything for the 'final' PDF and can download it as many times as they want.
If you don't have an Infix 7 license, you'll need to purchase credits in order to download the final PDF. You can then edit it in Infix free of charge for evermore - you don't need to buy an Infix license!