Can't edit PDF. How can I enable editing on a PDF from Windows 10?

Xournal++ is an open-source application that can be used to add text, handwritten notes, highlights, and other annotations to PDF files. If you're searching for how to enable editing on a PDF, it can handle common tasks such as filling in blank fields or writing comments directly on the page.

Steps:

1. Install the application and open the PDF.
2. Select the text, pen, or highlight tool.
3. Make the changes you need and save the document.

It does not replace or rewrite the original paragraphs in a PDF, but it works well for annotations, signatures, and simple edits. If how to enable editing on a PDF mainly involves adding information instead of modifying the original content, this approach is usually enough for everyday documents.