Legacy ImageMagick Discussions Archive

I have image with alpha background. But after extent it my background isnt transparent anymore. How can I fix it?

I have first image with dimensions:30x40 and second 500x200

I want to append small image to the big one (using -append) but before appending I want to resize canvas (not image) of the small image to second image dimensions (500x200). Is it possible to do this with a single command?

I guess i found the solution:
convert - -clone 0 +append out.gif

I am receiving image data from stdin and I want to append it to itself without creating temporary files. Is it possible?
Here is the solution with temporary files:
1. save stdin to tmp.file
2. convert tmp.file tmp.file +append result.img