Which Adobe product are you using?
You've posted in the forum comments forum which is for issues with the forums themselves. Let us know what you're trying to use and a moderator can move your post to the appropriate forum. As it is, they'll probably just guess Acrobat.
Did you purchase Adobe Photoshop and convert it to a jpeg?
Or maybe Adobe Premiere Pro and convert it to an MP4?
Or Adobe InDesign and convert it to a PDF?
As Szalam said, we need more info to answer your question, thank you!
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I see that you have Adobe export PDF subscription.
Adobe export PDF helps you to convert PDF into editable Word, Excel and Rich text document.
That means you can edit the file that was created after exporting the PDF.
Could you please let us know what happens when you try to edit the document that you have converted from PDF.
Please provide more information on this issue.