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26 Feb 2022
I am running one client's website on a Plesk server.
WordPress is not generating thumbnails for PDF files while uploading them from the TinyMCE editor or directly from the media manager.
After searching more deeply, I tried Regerating thumbnails plugins for them, but it fails and still, the issue is not resolved.
I have installed magic, Ghostscript, and ImageMagick with all the latest versions.
Did I have a mismatch to the versions with my WordPress 5.8 website?
I am stuck up with this issue for the last 3 days, can someone get me out of this trouble?
6 Mar 2022
Try with Ghostscript v8.70, ImageMagick v6.5.7
Here WordPress was looking in /usr/bin for the Ghostscript executable.
By default ./configure command (with no args) installed GS to /usr/local/bin location.
After installing GS to path /usr/bin instead, WordPress was finally able to generate PDF thumbnails!
In order to fix the issue hit below commands in a sequence,
Get latest GS 9.19 tar.gz
Unzip downloaded file,
tar -zxvf ghostscript-9.19.tar.gz
Navigate to the same directory after unzipping,
sudo make install
That's it. Hope this helps.
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