How to save changes on PDF?

My boss sent me a PDF file for me to type then send it back to her. I put in info but it won't allow me to save changes. I only can print it but not save it. Anyone knows how to save changes?How to save changes on PDF?
PDF in nature is un-editable, so if you are going to edit a PDF, here are four ways to solve your problem.

1.Edit PDF through Gmail.

Recently Gmail added a solution to solve this problem. If you received an Email with PDF file attached, you’ll now get a “View” link along with the previously existing “Download” link. When clicked, the “View” link opens up a new tab, which loads the PDF in Google Docs, convert the Document to HTML with Gmail and then open the HTML file in Microsoft Word and choose Save as .doc. then you can edit your read-only pdf file in word document However you need to send your PDF file through Gmail, it’s convenient when it is a single one, but it will be troublesome for a batch PDF files and the process seems very boring. After all, it’s free!



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2.Convert PDF online.

When convert PDF online, there are indications for you to upload your PDF file and choose the output format, then leave your email address, they will send you the converted word file to you. Sometimes this kind of service is free of charge, like Zamzar, http://www.zamzar.com four steps will help you do the job. However no pay no security, you may let them help you to convert some common files, will you trust them on some important and private files?



3.PDF to word converter.

This is a kind of software specially designed for converting PDF to word, and make PDF editable in word document. A good PDF to Word converter supports conversion of single file, batch files, and also selected pages, and make it exactly the same as the original file. It can help the users to extract all the information including the original layout of text, graphics, images etc. Most importantly, it’s easy to handle and affordable for everyone.



4.Edit PDF in Adobe Acrobat.

Everyone knows that Adobe Acrobat is the professional tool to create PDF, and it is a piece of cake to edit PDF file in it. You can open your PDF file in Adobe acrobat, edit it directly, and then save your PDF file. However it’s an expensive software, you need to pay a high price to purchase, and get familiar with all the features first. Many users complain that use the Adobe Acrobat make their computer run slow and it eat up a lot of disk space when the file saved. So it’s the first software we may think of when edit a PDF file, but the last to choose.How to save changes on PDF?
I assume you have adobe reader?



you can not make changes



why would she send you something she wanted edited in a non-editable format like pdf?



your best bet, I'd think, would be to shoot her an email and ask for the original document in its native format