One of the most common questions asked by Adobe Reader users is, why can't I save the edits I make on PDF files using Adobe Reader? Actually, you can save files, but only in limited circumstances.
Adobe Reader 7 offers you two ways of saving files. You normally can't edit PDFs, and therefore can't save the files. You can, however, save a copy of a PDF document for the purpose of duplicating the file and saving the PDF from within a Web browser.
The second way of saving a PDF is when the document has been enabled with usage rights for Adobe Reader users. In this case, you can edit and then save the file in Adobe Reader, just as you would expect to save a document in Adobe Acrobat.
When you save ...