Answered
I made some test PDF's in Indesign (96dpi and 150 dpi) and exported them to Acrobat to check out their size.
Both came out about 150kb-180kb.
But when I added the SEND/SUBMIT-button, both of them increased to 1 MB in size.
Am I doing something wrong?
I have to save the PDF as:
Reader Extended PDFs > Enable Additional Features
So that users can edit the PDF.
Is there a way to decrease the size?
First I thought that it was my images that I was using, but that's not the case because I did test without images.
first you have to check the size of the picture embedded in the button, if any.
Then, when everything is done, be sure to make a "Save as" of the PDF file, instead of simply "Save".
See that doc : https://sendnow.acrobat.com/?i=JsjKEkmBwuLijcK11UfVbg
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