For some reason, Acrobat won’t sign the PDF.
Once I draw a rectangle, I get this massage: “This signature field requires a digital signature identity. Would you like to configure one now?” and pressing “Configure Digital ID” fill the whole document with 50% transparent black with a white pixel in the middle.
Afterward, only Esc will make the document available again (without the signature).
I’m working on an up to date Acrobat CC and I tried “Save as other > Reader extended PDF”.
What should I do?
Sorry for the delay in response.
Are you still experiencing this issue? If yes, please try the steps given below:
1- Press Esc button to get back to the pdf.
2- Click Edit > Preferences > Signatures > Identities & Trusted Certificates > click More.
3- Click Add ID and follow the steps to create a digital ID. Once finished, relaunch Acrobat and try again. You may refer to the steps given in the following link on how to create a digital id in Acrobat: Digital IDs in Acrobat
Feel free to update this discussion if you need any help.