pdfcdf
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How to edit a PDF on Mac

macOS ships with Preview, which is genuinely good at some PDF work — it can rotate pages, and you can drag pages between two open documents. But Preview is fiddly for anything beyond that, it can't edit existing text, and its page-thumbnail dragging is easy to get wrong. A browser tool gives you a clearer interface for the same job, with no upload and no Acrobat subscription.

Fixing a typo, covering outdated details or adding text to a form is the kind of small edit that always seems to come up when you don't have desktop software available.

Open Edit PDF →

Step by step on Mac

  1. 1Open the Edit PDF tool and upload your PDF.
  2. 2Pick a tool from the toolbar — Text, Whiteout, Highlight or Image — and click on the page to place it.
  3. 3Drag to position, use the corner handle to resize, and use the side panel to change the font, size or color of text.
  4. 4To replace existing words: cover them with a Whiteout box, then place Text on top.
  5. 5Click “Apply & download” — your edits become a permanent part of the PDF.

Click to browse and the standard macOS file dialog opens — or just drag the PDF from Finder or your desktop straight onto the page, which is usually faster.

Where the finished file is saved on Mac

Your browser saves the result to ~/Downloads by default, and it appears in the downloads list in the toolbar. From there drag it straight into Mail, Finder or a Slack message.

What Mac can’t do on its own

Preview can rotate and reorder pages, but it cannot edit existing text, fill non-interactive forms, run OCR on a scan, or convert a document to other formats. Adobe charges a monthly fee for those; this doesn't.

FAQ

Why not just use Preview on my Mac?
Preview is fine for rotating pages or dragging thumbnails between two open PDFs. It can't edit existing text, OCR a scan, or convert formats — and its drag-based page shuffling is easy to get wrong on a long document.
Does this work on Apple Silicon Macs?
Yes. It's a web page, so it runs identically on M-series and Intel Macs, in Safari, Chrome, Arc, Firefox or Edge.
Can I change text that's already in the PDF?
You can cover any existing text with a whiteout box and type new text over it — the classic PDF-editing technique. True in-place text editing of the original characters isn't possible in a flattened PDF, but the whiteout approach produces a clean result that prints perfectly.
Will people see that the PDF was edited?
Your edits are drawn into the PDF's own content, the same way desktop editors do it. Match the font and size to the surrounding text for the most seamless result.
Does editing upload my PDF anywhere?
No — the whole editor runs in your browser. The file, your edits and the final download never leave your device.
Is the PDF editor really free? Any watermark or trial?
Completely free — no watermark on the edited PDF, no trial period, no locked features and no sign-up. Edit as many documents as you like.
Can I edit a PDF without installing any software?
Yes. Everything runs in your web browser on Mac, Windows, Linux, Chromebook or a phone — there's nothing to download or install.
Is pdfcdf free to use?
Yes. Every tool on pdfcdf is completely free, with no account, no watermarks, and no limits on how many files you process.
Are my files safe? Do they get uploaded?
Your files never leave your device. Every tool runs entirely in your browser, so your documents are processed locally and are never uploaded to a server or seen by anyone.
Do I need to create an account or sign up?
No. pdfcdf works instantly with no sign-up, no email, and no software to install — just open the tool and go.
Does it work on mobile phones and tablets?
Yes. pdfcdf runs in any modern browser on phones, tablets, Mac, Windows and Linux — nothing to download.

Ready to edit a PDF on your Mac?

Open Edit PDF →

Same tool, other devices

Edit a PDF on iPhoneEdit a PDF on AndroidEdit a PDF on WindowsEdit a PDF on ChromebookEdit a PDF on iPad

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