Wondershare's is used for the Portable Document Format, or PDF, and is a cross-platform format that allows you to reproduce a document exactly regardless of the application it was created on, also working as a . This prevents you from having to convert files that were created in different programs or versions. The format is also used by many to prevent documents from being edited later. What if this is what you need? What options are available for a ? Excel and Word have been able for some time to create PDF files from their software. However, it's not as easy to do the opposite. You will need to have the original file in order to make changes to a PDF. After making edits, you can export a new PDF. What if you don’t have the original file? Even if the file isn’t password protected, you can still edit it if you have the right tool.