"DRM protection" on downloaded pdf's

[_Adobe2]

I get that "Can't open it's protected by DRM" on pdf's I downloaded from archive.org.

How can I get rid of this nonsense?

$ADBE

[Nanaky · Accepted solution]

DRM are add of the creativer of the file. If you want a PDF without DRM you must ask the person how has get the file. Allone you can not remove this.

[_Adobe2]

What I meant is I get the "Is protected by DRM"-notice on all PDF's I add now. Even the ones I know who haven't got DRM.

If I add one that is infected with DRM, will they infect all other documents?

[Nanaky]

Do open the PDFs in Acrobat or Digital Edition?

[_Adobe2]

Yes that works. Only if I add new PDF's to the e-reader. I get the DRM notice.

[Nanaky]

And in which program you open it first?