[Enhancement] pdf support

mtron commented 3 years ago

I (mis?) use lychee for storing scans of some of my documents and invoices. So it would be great to have pdf support in lychee with generated thumbnails :)

Thanks for this very nice software!

ildyria commented 3 years ago

pdf is somewhat integrated, you just need to add it to the raw extensions in the advanced settings. What is not integrated is the thumbnail generation.

ildyria commented 3 years ago

raw_formats in the advanced settings contain the list of raw format you would like to allow to import. They have to be separated with |, for example .pdf|.tex|.cr3

ildyria commented 3 years ago

https://github.com/spatie/pdf-to-image interesting.

kamil4 commented 3 years ago

Doesn't ImageMagick support PDF?

evoludolab commented 3 years ago

This is an interesting suggestion. Just some further thoughts:

ImageMagick indeed supports pdf (but the default GD does not). Allow uploading of pdf's if ImageMagick is installed/enabled?
What about multi-page pdf's? Should Lychee deal with them or delegate to browser? The latter might be more natural and also solve problems about zooming in on pdf's. Nevertheless, remains unclear how this would fit with Lychee's image view.
'Upload photo' seems to ignore raw_formats (adding .pdf does not allow to select pdf's in the file chooser - at least on macOS 11 with Safari).
'Import from server' also did not succeed, i.e. the pdf was skipped (and properly reported to the GUI) but not quite sure at what point the import was aborted.

The last two items require some more digging... currently I failed to convince Lychee to upload any pdf.

LycheeOrg / Lychee

[Enhancement] pdf support #854