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How to do batch exporting?
Hello again all,

My 2nd post, thanks for the help in advance. I'm trying to export batches of .bmp's to .png's....and my mouse clicking finger is getting tired of doing it the hard way.

How do I use a batch process to streamline this?

Thanks again Smile
There is a plugin BIMP see


a non-gimp way with the program xnviewmp
The batch image manipulation tool worked well for exporting the images to .png, but they all ended up with alpha channels even after I removed them beforehand. What setting do I use when the .png dialogue for "advanced params" comes up that will remove the alphas?
Then not possible with either BIMP or XNview. I did a bug report about this but I suppose it is a fail-safe for people who require transparency.

The only other batch process I can come up with is using command line ImageMagick

magick mogrify -alpha off -format png *.bmp

Run that in a folder full of bmp files to get png's
Fair enough, thanks
Looks like using command line ImageMagick is not favoured Wink I see the post on Reddit.

Davids Batch Processor (dbp) This was for Gimp 2.8 and earlier, there is a 64 bit Windows version but I cannot get it to work with Win10 / Gimp 2.10.22 So stuck with the original 32 bit plugin. The web site is long gone, get it from the Internet archive.

Unzip and put dbp.exe in C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\plug-ins

In use:
Input Tab: load the file list
Rename Tab: Tick Flatten
Output Tab: Select PNG, untick the options (especially Interlacing) Click the Start Button.

An animation of all that. 64 bit Win10 / Gimp 2.10.22
An alternate for windows users allergic to the command line (I would rather make a batch file than keep mistyping at the command prompt) is irfanView--easy to use GUI-based batch conversion/renaming, and won't add an alpha channel to png unless told to 'save transparent color'...

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