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FastStone Capture is a much better option than Printscreen.

This screenshot shows how to take a shot of a fixed size region. Just move the rectangle around to grab the desired region as asked in...

It is better to use FastStone Capture. Version 5.3 is the last freeware version, and adequate for what you need.

Use custom selection (Shift+C), followed by Crop (Ctrl+Y).

Try VLC media player.

Please attach the zip file for the test version for the benefit of others.

Please see this earlier thread. Not a bug in IrfanView.

I don't think we can help without a sample image.

I reinstalled 4.56 64-bit in C:\TEMP and loaded a CR2 file in 4250 milliseconds
4.57 64-bit loaded the same file in 3562 milliseconds

In both...

Make sure you're using the 64-bit version. It is significantly faster at loading large images than the 32-bit version.

Then you were probably not loading the full image. That is why there are the options to load half-sized or embedded preview images.

If you want to work with RAW images, use a proper photo editor....

I see big differences depending on the options used in Settings, Plugins:


Try to load embedded preview image (if available)
Try to load CRW/CR2 using Canon DLLs
Load half size image...

Thanks for the feedback. I updated the thread's status.

See the link to IrfanPaint in my signature for the developer's home page.

I think every new user should first look at the Settings dialog and the menus whenever they encounter a problem. Searching help should be the next step. If they cannot find the answer there, they...

IrfanPaint is no longer being developed.

The code has been released if you are able to code what you want for yourself.

Thanks for the feedback. I have updated the thread's status since it is not a bug in IrfanView.

In fact, the quality is set to Try to save with original JPG quality. The slider setting is ignored.

Any JPG file with an estimated quality less than 100% will be optimised for size vs quality if...

Here is a bug report on what seems to be the same issue.

If other viewers consistently display the same files with black text on white, but IrfanView displays them with white text on black, I...

Upgrade to the latest version 4.57. If some files are still inverted, send a bug report to the author. Help, About IrfanView for his email.

You could also attach a sample file for us to confirm it.

After inverting the colours, save the file, then it should be OK the next time you open it.

The ratios for the square root of 2 were added some time after version 4.44, but there is no option to add your own custom ratios.

As far as I know, one cannot add new custom ratios. You get just one, which can be changed, and is remembered by the dialog.

From the FAQ

Q: Can I use IrfanView on Linux?
A: Yes. There is no native-Linux version of IrfanView. However, you can use IrfanView in conjunction with Linux programs like WINE, Windows Linux...

Try the filename pattern: ###

The WPG plugin for IrfanView 4.57 will open WPG version 1 files, but not version 2.

Try LibreOffice Draw instead.

No entries for CustomSize exist in either of my *.ini files.

The installation folder copy points to the right place:


INI_Folder=%APPDATA%\IrfanView