[Koha-bugs] [Bug 31049] Add tool to set/reduce local cover image size and quality, interactively and in batch.

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=31049

Galen Charlton <gmcharlt at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |gmcharlt at gmail.com

--- Comment #1 from Galen Charlton <gmcharlt at gmail.com> ---
Koha currently uses GD's copyResampled to resize local cover images upon
upload. Two versions of the original image are produced:

* a thumbnail with a maximum width of 140 and a maximum height of 200
* a "full size" version with a maximum width of 600 and a maximum height of 800

Koha only scales down; it does not scale images up if they're already within
the size limits. Also, if the width is larger than the maximum, the width
adjustment is what controls the overall resizing, meaning that it's possible
for the result to be taller than the maximum height.

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