Use a free PDF editor like LibreOffice Draw
Open the PDF in LibreOffice Draw
Click the text you want to edit
Type the new text
Save or export the file as PDF
Use Google Docs to open the PDF
Edit the text in Google Docs
Download it again as a PDF
Use Microsoft Edge or Adobe Acrobat Reader for basic annotations
Add text boxes if full editing is not available
Use online free PDF editors like Sejda, PDFescape, or iLovePDF
Upload the PDF
Edit the text
Download the edited file
Convert the PDF to Word with a free converter
Edit the Word file
Save it back as a PDF
Use free open-source software like Inkscape for single-page PDFs
Edit the text elements
Save the changes as PDF