Password-protecting a document is the best way to secure its content and ensure it won’t be submitted to wrong person. Depending on your platform, many tools can help you add an extra layer of protection to files on which you keep sensitive data. However, the most proven and simple way of handling this task is utilizing DocHub.
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The text explains that PDFs are typically read-only, making them ideal for maintaining formatting. However, with a dedicated PDF editor, they can still be edited. Flattening the PDF into an image can make editing harder but not impossible. To create a read-only PDF, open it in a browser, click print, select "save as PDF," and then save the file. Using a password to encrypt the PDF can also lock editing on most PDF editors.