write text on a pdf (free version)

adobe acrobat reader dc (free)

I click on one pdf and it allows me to add/edit text

but another pdf I click "edit" and asks me to sign in (pay) for paid version

Could it be the type of pdf. ocr versus non ocr

I just want to write text over the lines.  I dont want to use Microsoft paint with a screenshot
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Joe Winograd, Fellow&MVEDeveloperCommented:
Hi rgb,
Two points: (1) You cannot use the Edit PDF feature with the free Adobe Reader. If you click Edit PDF with the free Reader, it will give you a dialog to buy a non-free version. (2) However, the free Reader does support the Comment feature. If you click Comment, you'll be able to add a note, text, stamp, etc., unless the document restricts it.

So, if you click Comment and the PDF allows it, it's because the Document Restrictions allow it:

commenting allowed
If you click Comment and the PDF does not allow it, it's because the Document Restrictions don't allow it:

commenting not allowed
Regards, Joe
Edwin HofferTechnical ExpertCommented:
Adobe Acrobat Reader DC is a free tool, it does not allow you to edit PDF document. Rather, it only provides the functionality to read, view and comment on PDF files. But, as Joe said it is possible to comment on a PDF document if it is not restricted. However, if you still find that PDF commenting is disabled then go through this blog and enable commenting.

rgb192Author Commented:
where is document properties
(using free version)
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Joe Winograd, Fellow&MVEDeveloperCommented:
where is document properties
Click the File menu, then Properties.

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rgb192Author Commented:
Joe Winograd, Fellow&MVEDeveloperCommented:
You're welcome...happy to help.
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