When using NConvert to process a 14369×5291-pixel monochrome BMP bitmap, the x64 version crashes when rotating by 90° or 270°, while rotation by 180° works normally. Tests have shown that:
All 32-bit versions function properly.
NConvert-6.88-win64 works normally.
NConvert-6.92-win64 crashes, and all newer 64-bit versions also crash.
C:\Users\Administrator\Desktop\test>nconvert.exe -rotate 90 -o output.bmp -overwrite input.bmp
** NCONVERT v7.226 (c) 1991-2025 Pierre-E Gougelet (Jun 17 2025/15:11:26) **
Version for Windows 7/8/10/11 x64 (All rights reserved)
** This is freeware software (for non-commercial use)
C:\Users\Administrator\Desktop\test>nconvert.exe -rotate 180 -o output.bmp -overwrite input.bmp
** NCONVERT v7.226 (c) 1991-2025 Pierre-E Gougelet (Jun 17 2025/15:11:26) **
Version for Windows 7/8/10/11 x64 (All rights reserved)
** This is freeware software (for non-commercial use)
Conversion of input.bmp into output.bmp OK
C:\Users\Administrator\Desktop\test>nconvert.exe -rotate 270 -o output.bmp -overwrite input.bmp
** NCONVERT v7.226 (c) 1991-2025 Pierre-E Gougelet (Jun 17 2025/15:11:26) **
Version for Windows 7/8/10/11 x64 (All rights reserved)
** This is freeware software (for non-commercial use)
The x64 version crashes when rotating by 90° or 270°
Moderator: xnview
The x64 version crashes when rotating by 90° or 270°
- Attachments
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- input.zip
- (374.54 KiB) Downloaded 4115 times
Re: The x64 version crashes when rotating by 90° or 270°
are you able to reproduce with 7.228?
Pierre.
Re: The x64 version crashes when rotating by 90° or 270°
Could you tell me where I can download Version 7.228? The latest version available on the official website is Version 7.226, isn't it?
Re: The x64 version crashes when rotating by 90° or 270°
the version on website is 7.228gy0715 wrote: Mon Jan 05, 2026 11:01 am Could you tell me where I can download Version 7.228? The latest version available on the official website is Version 7.226, isn't it?
Pierre.
Re: The x64 version crashes when rotating by 90° or 270°
The version of this link is v7.226, and the modification time is June 17, 2025.
https://download.xnview.com/NConvert-win64.zip