Hello @janilso
Is the issue still actual?
We don’t limit the size of the imported file. But it could be “limited” by your server environment memory/CPU amount.
Usually if there’s some error during the PDF import, it should be logged in the server’s error log. We need to know the exact error to understand and solve the issue you have.
You may read more about server error in our docs https://support.wp.teamlead.pw/dwkb/500-server-error/
Please let me know versions of WordPress, ImageMagick, GhostScript, PDF Light Viewer plugin(s) you have and please send server and plugin’s log files to the [email protected].
You can also send PDF file example to us so we could check if it could be imported on our side.
If the file is too big (in case you’ve noticed that you can import smaller ones), then alternatively you could try to import it via the Command Line Interface (CLI) – more info https://pdf-light-viewer.wp.teamlead.pw/wp-content/plugins/pdf-light-viewer/documentation/index.html#advanced
