.ai and .eps fails to convert

[sjoller]

I installed the ready-to-go docker image, to test this out, and it seems that converting vector formats is not working for me.

Converting an .ai file to .svg

I get the error:

Error converting MyFile.ai: Error: The specified array cannot be empty

If I open the .ai file in Inkscape, it seems to work fine.

Converting an .eps file to .svg

I get the error:

Error converting MyLogo.eps: Error: FailedToExecuteCommand `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pamcmyk32' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72' -dEPSCrop  '-sOutputFile=/tmp/magick-yWWGnpw81fZLeYFdemVYUwJqHxDBMmIf%d' '-f/tmp/magick-02a6yCjAc7dI-kBQSYg9hn00DRCBLpGf' '-f/tmp/magick-TcgCRAaDKAmmFsqbqMe6AxQmGHBbpmde'' (-1) @ error/delegate.c/ExternalDelegateCommand/518

This file fails to open in Inkscape, but opens fine in GIMP.

I tried to convert them to a bitmap format as well, to see if it was related specifically to the .svg file type, but I got the same errors.

The test files are not really mine to distribute, but if it will help debugging, I might share them more privately.

[JovannMC]

both .ai and .eps only support one-way (converting into those formats) so i was confused how you were able to upload them -turns out you found an issue where you can still "upload" these files if you drag and dropped them into VERT to "convert" them. very sorry for that oversight!

i've fixed that in 00e38b6, however better support for many formats like this will be improved when we work on an easier way to allow multiple tools to convert images (e.g. imagemagick & ffmpeg).

[sjoller]

No need to apologize. I just wanted to let you know about the errors.

Surely you mean VERT, currently, only supports converting to those formats. I've used multiple of the online converters to convert from both .ai and .eps format (mostly) with success. At the end of the day, it's 'just' vector formats, so at least in theory, it shouldn't be impossible to convert from them - but I have no insight in how difficult a task it is, so I'm sure there's a good reason for the limitation.

[JovannMC]

it is a limitation with the library we use, magick-wasm, as certain formats (like .ai and .eps) require external programs to be run (for reading, writing, or both) which are not built with it (see dlemstra/magick-wasm#141 (comment)).

i can definitely have a look at ways to improve support for many formats as there is most likely something out there for it, or we just making something ourselves.