Best PDF Editors 2026

Frequently Asked Questions

Can I edit text directly in a PDF?▾

Yes, but with limitations. PDF editors like Adobe Acrobat, Nitro PDF, and Foxit PhantomPDF allow direct text editing. However, PDFs store text in fixed positions using specific fonts - if the original font is not embedded, edited text may look different. Minor corrections (fixing a typo, updating a date) work well; major rewrites often require converting to Word, editing, and re-exporting to PDF.

What is the best free PDF editor?▾

LibreOffice Draw opens and edits PDFs for free on Windows, Mac, and Linux - adequate for simple edits. PDF24 Editor (online or desktop) handles basic annotation and form filling. For macOS users, Preview handles annotation, form completion, signatures, and page reordering natively at no cost. Adobe Acrobat Reader (free) only allows annotation and form filling, not text editing.

How do I add a signature to a PDF?▾

Adobe Acrobat Reader (free) allows you to draw, type, or upload an image of your signature and place it anywhere in a PDF. DocuSign and HelloSign provide legally binding e-signature workflows with audit trails and signer verification. macOS Preview includes signature capture via trackpad or camera. For legally binding contracts, use a dedicated e-signature platform rather than simple image overlays.

What is the difference between annotating and editing a PDF?▾

Annotating adds a layer on top of the document, such as highlights, comments, sticky notes, or drawings, without changing the underlying content, which is ideal for review and feedback. Editing changes the actual content of the PDF, altering the text, replacing images, or rearranging elements. Most free viewers support annotation, but true editing requires a dedicated PDF editor. If you only need to mark up a document for someone else, annotation is enough; to change what the document says, you need editing.

How do I properly redact information in a PDF?▾

Use a real redaction tool, not a black rectangle. Simply drawing a black box over text leaves the original text underneath, recoverable by anyone who copies the area or removes the shape. Proper redaction tools permanently delete the underlying content and replace it with the black mark, so the sensitive data is genuinely gone. This distinction matters enormously for legal, medical, and HR documents, where an improperly redacted file can leak exactly the information you meant to hide.

Can I edit a PDF for free?▾

Yes, for basic tasks. Free tools handle annotation, form filling, and light edits, and some open-source and browser-based editors go further. Full-featured editing, precise text reflow, advanced redaction, and OCR, is usually where paid tools like Adobe Acrobat pull ahead. For occasional simple changes a free editor is fine, but weigh privacy: many free online editors upload your file to their servers, so avoid them for confidential documents and prefer tools that edit locally on your device.