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Can't Open Very Large PNG Created With MP
Posted: Mon Feb 03, 2025 9:25 pm
by brazenvoid
I am joining comic strips in long format and any PNG exported bigger than 200MB (~300MP) can't be opened in XnviewMP. Though all other programs (Windows Photos, Firefox etc) can open it just fine.
MP just throws that File can't be loaded error.
PNG: Compression Level 9, no filter, keeps nothing
OS: Windows 10 64bit
XnView MP: v1.8.3 64bit
Re: Can't Open Very Large PNG Created With MP
Posted: Tue Feb 04, 2025 11:02 am
by xnview
which pixel size?
Re: Can't Open Very Large PNG Created With MP
Posted: Tue Feb 04, 2025 8:12 pm
by brazenvoid
xnview wrote: Tue Feb 04, 2025 11:02 amwhich pixel size?
720 x 440120
230 MB
Re: Can't Open Very Large PNG Created With MP
Posted: Wed Feb 05, 2025 4:41 pm
by xnview
Thanks to your detailed description I can reproduce
the problem.
Re: Can't Open Very Large PNG Created With MP
Posted: Wed Feb 05, 2025 9:36 pm
by brazenvoid
Thanks for the fix!
Re: Can't Open Very Large PNG Created With MP
Posted: Fri Feb 07, 2025 7:00 am
by xnview
This problem is supposed to be fixed in
XnView MP 1.8.5. Please check and confirm the bug fix here.
Re: Can't Open Very Large PNG Created With MP
Posted: Sun Feb 09, 2025 3:46 am
by VictorVG
I test use PNG image have size 12384x18432 px (228.262 Mpixels), 32 bit RGBA, 72 dpi Zip, compressed Zip (Deflate, 9) and w/o compression, Color system: GIMP built-in sRGB, make GIMP 2.10.38, file size 141 Mb and 872 Mb in to XnView MP v1.8.5 x64 - both test success.