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Problem with wkhtmltopdf #1694
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Originally created by @techauthoruk on GitHub (Apr 30, 2020).
Hi
Having a problem using wkhtmltopdf for generating my pdfs. Originally, I was using the default dompdf setup, which worked fine, but the output (particularly of tables) wasn't very good. So I installed wkhtmltopdf on my server (running Ubuntu 18.04) and copied it to the Bookstack directory (which is exactly what I did on my other install on a different server - running CentOS 8.1).
I changed the permissions for wkhtmltopdf to root:root 0750 (same as my other server), but when I try to create a pdf I get:
An Error Occurred
An unknown error occurred
Instead I tried adding the path to wkhtmltopdf in the .env file, but same result.
Anyone any suggestions how to sort this?
Thanks
Mark
@ssddanbrown commented on GitHub (Apr 30, 2020):
@techauthoruk You can follow the debugging guide to gain more detail on the error:
https://www.bookstackapp.com/docs/admin/debugging/
Sometimes I have had to run wkhtml through
xvfb-runbefore since WKHTML sometimes needs an X server depending on version and system, But the logs should have some clues as to what's happening.@techauthoruk commented on GitHub (May 1, 2020):
@ssddanbrown
Thanks for that. This is the error detail:
RuntimeException
The exit status code '126' says something went wrong: stderr: "sh: 1: /var/www/bookstack/wkhtmltopdf: Permission denied " stdout: "" command: /var/www/bookstack/wkhtmltopdf --lowquality --print-media-type '/tmp/knp_snappy5eab9d91b32850.22533742.html' '/tmp/knp_snappy5eab9d91b331a7.99555749.pdf'.
I don't understand the permission denied error, as all the permissions look ok as I previously mentioned. In the laravel log file I see this several times:
command: /var/www/bookstack/wkhtmltopdf --lowquality --print-media-type '/tmp/knp_snappy5e9e59e5d3bcf1.53933425.html' '/tmp/knp_snappy5e9e59e5d3c652.35544182.pdf'. {"userId":1,"exception":"[object] (RuntimeException(code: 1): The exit status code '1' says something went wrong:
stderr: "The switch --print-media-type, is not support using unpatched qt, and will be ignored.QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-www-data'
qt.qpa.screen: QXcbConnection: Could not connect to display
Could not connect to any X display.
So is this what you mentioned about running wkhtmltopdf through
xvfb-run? How would I do that?Many thanks for your asssitance.
Mark
@techauthoruk commented on GitHub (May 1, 2020):
@ssddanbrown
Problem solved - I found a tutorial explaining how to set up xvfb, and wkhtmltopdf now works with Bookstack
Thanks for the help - I will close this issue now.
Mark
@ssddanbrown commented on GitHub (May 1, 2020):
@techauthoruk Ah, great, glad you got it working!
@gor181 commented on GitHub (Mar 4, 2022):
Just a note to anyone who is having issues with this. The setup is as follows:
Please understand the security implications of the
ALLOW_UNTRUSTED_SERVER_FETCHINGoption before using.@ssddanbrown commented on GitHub (Mar 4, 2022):
Updated the above with a note of the security implications of using the displayed options.
@Mohamed-sobhi95 commented on GitHub (Nov 5, 2023):
How to enable wkhtmltopdf in the docker compose version