Use a free online PDF editor such as PDFescape, Sejda, or Smallpdf
Open the PDF in Google Drive and edit it with Google Docs
Use LibreOffice Draw to open and modify the PDF
Use Microsoft Edge or Adobe Acrobat Reader for basic annotations and form filling
Convert the PDF to Word with a free converter, edit it, then save it back as PDF
Use free desktop tools like PDFsam Basic for splitting, merging, and rearranging pages
Use free mobile apps that support PDF annotation and text editing
Use browser-based PDF editors that allow adding text, shapes, and signatures
Use free OCR tools if the PDF is scanned and needs text editing
Save the edited file as a new PDF after making changes