Hello,
in my scriptcase project i need to allow the user to draw simbols/marks on an image from a touchscreen device ( an Android tablet ).
Anyone as any advice / suggested library ?
Thanks
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Good to know. Thanks.
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It has a gpl like license which might be a problem to commercial users.
I also need to save a copy of the edited image on a sever as png file , how can i do that?
Yes but looks promising and in this case save my time. So i’m ready to pay for commercial license if needed ( and if it’s not too expensive ) 
nwdbs
Have you already included in a SC project?
I have not. Sorry. I just looked for something that fit your needs and pasted a link to it 
Helpful yet not helpful
It’s a real shame … it would have saved me some time to investigate
Anyway yes: it was very useful. Thanks.
Did you try the signature Data type include in Scriptcase it work fine, it should be easy to add a picture in background
Then you can merge both picture in PHP, see Merge two images in php - Stack Overflow
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Yes, we already use it, but in this case it is necessary to write freehand on a background image or on a pdf and save it.
We eventually solved it by integrating sketchpad.pro as suggested.
For now it’s just a prototype.
I’m trying to figure out how much it costs to use it for commercial purposes but their site doesn’t explain it.
Thanks everyone for the help.