I have about 200 keyframes in Full HD to export. I've tested it, and exporting one image takes about 1 minute (without annotations); the resulting JPG is 2.5 MB. Is there any way to speed up the export process at this resolution?
I've encountered another issue: when I try to import these JPGs into Illustrator, I get an error saying "The file is an unknown format and cannot be opened." However, if I open the JPG in Paint and save it again, the problem disappears.
Interestingly, if I export the keyframes as PNGs instead, they work perfectly fine.
It seems like there's an issue with the JPG export, as some programs are struggling to open the files
- joan
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Hi,
I just tested here it took 17 seconds to export 100 key images.
Let's figure out what's different, maybe there is some context that's triggering a massive slow down. 1 minute per frame?
My source video is 1920x1080, is your video much larger and you are exporting at full HD? It has to repaint the source so performance is partly related to the source size.
To export the images I used menu File > Export images > Key images…
The resulting files are indeed very large.
OK, I think I see what's going on, it seems it's exporting PNG files in all cases even when the extension is set to JPEG. That would explain both the large size and the problem opening the file in other software. I'll check what's going on.
4 2026-02-17 13:38:42 (edited by marcin_pl 2026-02-17 13:57:53)
I open video 1920x1080 and create a few key images.
If I used menu File > Export images > Image... it’s very fast and I can export images one after another without a break.
But if i used I used menu File > Export images > Key images... a status bar appears and the process takes a very long time.
Edit:
I did one more test. I created 7 key images in a 40-minute video: 6 before the 00:01:00 mark and 1 at 00:40:00. Those 6 images exported in a few seconds, but for the last one, I waited 10 minutes before canceling the process.
It looks like during the export, the program scans the video frame by frame, instead of only processing the keyframes.
It’s the same: I created 70 key images in a 1-minute video, and the export lasted 1 minute. But then, I created 1 key image at the end of a 40-minute video — I canceled the export after 10 minutes because the file had not exported.
Is it possible to change the export settings so it only scans the key images instead of all the frames in the video?
- joan
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Yes you're right, the code is shared with the exporter that exports frames by time interval so it enumerates all frames and decides which ones to export. That is indeed very inefficient for key images, I'll fix it.
- joan
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This should be fixed in the next build.
Thanks! I'm looking forward to it 
I have one more suggestion: an option to export key images with the key image name as the filename. This would be very helpful for analysis in Excel.