PDF Files not working

[jvlk123]

I'm running on a synology docker and since I had to update the server (Got popup in android app) I can not see any of my pdf files anymore in my libraries. I asked the yacreader creator and he said that maybe the binary was build without pdf file support?

[mark76]

I have exactly the same configuration and exactly the same issue. After a lot of experimentation, I mamnaged to build (locally) an image with PDF support restored.

Here's a brief list of what broke PDF in the first place, and what I had to do to restore it.

• Recently, the image was updated to use QT6.
• QT6 breaks PDF support, so it was deactivated in the build
• To restore PDF support, we need the additional library libpoppler-qt6
• The baseimage is based on Ubuntu jammy (22), for which this library does not seem to exist
• Upgrading the baseimage to Ubuntu noble (24) fixes the missing library issue (one also has to explicitly install the runtime library, or "apt-get autoremove" will remove the library from the container, and the Server will not work)
• With the library available, one can remove "no_pdf" from the build flags and PDF support should be restored

I still need to clean up my Dockerfile, and check if I missed something in the description, but that should be one possible fix.

[jvlk123]

Could you maybe share your image, upload it somewhere?
I have no clue how to build my own image so I would be very grateful if I could use yours.

[mark76]

Sure, here's a link to my unofficial image: https://mega.nz/file/qyoW3DpA#f3qU8EskuhrJqscv3eSWKyqABU0k1quvYu97AJ5tFbI
It is based on the "unarr/amd64" build, you can upload it to Synology's Container Manager, then you will need to generate a new Container (and watch out for the ports if you still have a container with the regular image sitting around somewhere, two containers cannot use the same port).

And here is the Dockerfile (sorry for not opening a PR, but I do not fully understand the current state of the multiplatform build and what would need to be done to apply this to all Dockerfiles).
Dockerfile.zip

Hope that helps!

[jvlk123]

Awesome, thx a lot kind sir.

Edit: Just tried your image but i still can't see pdf files?

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