Edit PDF
Change the text that’s already in your PDF, right on the page. Add text, images, shapes, highlights and drawings, redact for real, and rearrange pages — all on your device.
How to edit a PDF
- 01
Add a PDF
Drop it in or pick it from your files.
- 02
Add and arrange
Place text, images, shapes, highlights, covers or drawings on the page; reorder, rotate, duplicate or delete pages below.
- 03
Save
Download the edited PDF, written on your device.
Questions
Are my files uploaded anywhere?
No. LocalPDF runs entirely in your browser: files are read from your disk, processed on your device and saved straight back. Nothing is sent to a server, and once the page has loaded it keeps working with your internet connection switched off.
Can I change text that’s already in the PDF?
Yes. Pick the Edit text tool and click a line: the old words are cut out of the file and the new ones are drawn in the same place, at the same angle. When the file’s own font can draw the new characters, it’s reused, so the replacement matches the original; otherwise it’s written in a standard font you choose.
Is redaction permanent?
Yes. A redaction box removes the text, images, inline images and drawings under it from the file itself — they’re not just covered — and any annotations there go too. Because the old bytes must not survive anywhere, a redacted file is always rewritten whole, which drops digital signatures.
Will editing break a digital signature?
Adding things or only changing page rotation is appended, so the signed bytes stay untouched and readers simply note the file was changed after signing. Changing existing text, redacting, or reordering pages rewrites the file, which drops signatures.
Do the images lose quality?
No. JPEG and PNG images are embedded as they are, not re-saved, so a photo you place comes out exactly as you gave it.
What editing a PDF does, and when to use it
Editing a PDF means changing the document without turning it into something else. You add what’s missing — a line of text, a signature block, a logo, an arrow, a highlight — and take out what shouldn’t be there: change a line the way you would in a word processor, or redact an area so the words and pictures under it are gone from the file, not just covered. Then you tidy the pages: rotate a scan that came out sideways, drop a blank sheet, put the summary first.
This tool keeps the original document intact wherever it can. Added content is drawn into the page rather than the page being rebuilt, so fonts and images stay exactly as they were and the edits can be appended — an existing digital signature stays valid. When something is removed, the opposite is true: the removed bytes are cut out and the file is rewritten whole, because a deleted line must not survive in an earlier revision. Everything runs on your device, so a contract or a medical letter never leaves it.