Editing a PDF for free: what each option can do
Somebody sends a PDF and asks for a small change. One wrong date, a stale phone number, a page that needs to go. You do not need a subscription for that, but you do need to know which free route survives your particular file. The full ranking, with the free-tier limits spelled out, is at https://best-pdf-editor.com/
First question: do you have the original?
If the PDF came from a Word file, a Pages document or a design tool, edit that and export again. Everything below is a workaround for the case where the source is gone.
Mac
Preview does more than people expect. It fills form fields, adds text boxes and shapes, reorders and deletes pages. It merges two PDFs by dragging thumbnails. It also redacts text so that the words are genuinely removed.
What it does not do is edit the text already on the page. Apple says so plainly in its own documentation.
Windows
Edge fills basic forms and lets you write on a page with ink. Chrome added highlighting, notes, text boxes, filling and signing in February 2026, plus OCR on scans. Neither edits existing text.
For that, the free option most people land on is LibreOffice Draw, which opens a PDF and lets you rewrite the text in it. Simple pages come through fine. Complex layouts do not.
In a browser
Sejda publishes its limits, which is rare and useful: three tasks an hour, 50 MB per file, and the editor caps out at 50 pages. Files are deleted after two hours.
PDF24 is free with no registration, but its editor is annotation rather than text editing. PDFgear is free, needs no account and adds no watermark, and it does edit text.
Converting instead of editing
Word opens a PDF and converts it. Microsoft warns that the result "might not have a perfect page-to-page correspondence with the original", and that the trick works best on files that are mostly text.
Google Drive converts to Docs and runs OCR on the way. The limits are real: 2 MB per file, and Google says lists, tables, columns and footnotes are unlikely to survive.
If the PDF is a scan
There is no text to edit until you create some. Run OCR first. PDF24 does it free with no registration, Sejda allows 10 pages per task, and OCRmyPDF does it locally if you are comfortable with a terminal.
The watermark check
Before you spend an hour on a document, save a test page and look at it. Some desktop free tiers stamp the output. UPDF says on its own pricing page that the free version adds a trial watermark when you save.