Is there anyway to get either the source code or if anyone has a version that was compiled for Delphi 11 that I can use to give me a buffer to switch to some other components? 

Does anyone know of any other Delphi 11 compatible components I could use to replace QuickPDF?

The only other4 solution I can think of is somehow write a wrapper around QuickPDF in Delphi 7 that can be used in Delphi 11. Any know if this is possible?

In theory you might be able use the DLL interface of the version you have now instead of the Delphi interface, but I think this would involve significant changes to your code, especially if your application currently uses multiple threads to call the library. 

You could probably start by making a list of all the Delphi functions that you currently use, and if this is not too many, create a Delphi 7 DLL that calls each one of them and returns its result, with an interface section that exposes all the functions which you can then call from your Delphi 11 application. Of course you also might need to define and handle all the string parameters specially, to get them across a DLL boundary and use them as Ansistrings in the function wrappers in the Delhi 7 DLL. But that depends on how you will be converting your Delphi 7 application to Unicode. Either way, a huge job.

As for an alternative, that depends on your application. Our applications mainly render PDFs, and we offer our users the choice of either QPDF or Winsoft's PDFIUM interface (both have different oddities for different types of PDF document) to do this, implemented in separate code branches. But I have not used the Winsoft product for creating and modifying PDFs, which we also need, so I do not know how well suited it would be for that; we only use QPDF for that task, now in Delphi 11 and hopefully still using the QPDF source we have for whatever follows it.  I have not looked at other Foxit offerings.

Perhaps other users here can tell you how they have used other techniques to resolve this problem. or might have other suggestions for alternatives. But in the latter case they may have already moved to another forum to discuss whatever they use now.

I hope this helps a little; and I wish you good luck!

I've sent you an email... ;-)

I have a source code version 13.11 working under XE8.

Does anybody know if and how this could be migrated to Delphi 11.3?

If you have any version of the source code AND Delphi 11.3 this couldn't be your question?

Compile it and perhaps with some changes it will work.

Cheers and welcome here,

Ingo

Hi Ingo,

Thanks for replying!

Unfortunately it will not compile and replacing VER290 by VER350 does not help...

Manfred

What issues you couldn't solve?