Edit a PDF privately in your browser

Edit a PDF without uploading the document, creating an account, accepting a daily task counter, or receiving a watermark. FileGizmo runs the editing workflow on this device and creates a new PDF copy for download. Your original file remains unchanged.

Text already in the document can be rewritten. Choose Edit text, click the words you want to change, and retype them. The replacement keeps the original size, family, weight and slant, and the patch behind it takes its colour from the page rather than assuming white, so a correction on a tinted row leaves no pale rectangle. Find and replace does the same across every page at once.

Two limits matter. It needs a real text layer, so a scanned page will not respond; that is a picture of text, and Local OCR is the tool for it. And the original is painted over rather than rewritten in the content stream, so by default it stays in the file and can still be copied out even though the page no longer shows it. The editor says so the moment you replace anything, and offers a way out: tick the box in that warning and the corrected pages export as pictures, removing the old words for good at the cost of those pages no longer being searchable.

The editor focuses on reliable add-content work. You can place a text box and choose a standard PDF font, size, colour, alignment, bold, or italic styling. You can add a PNG or JPG, draw freehand ink, create rectangles, ellipses, lines, and arrows, and mark regions with highlight, underline, or strikethrough graphics. Link areas create clickable web links. Every item can be moved, resized, rotated, undone, redone, or applied to all pages.

Existing PDF text is different from newly added text. Rewriting an existing content stream can require the original embedded font, character map, shaping rules, and exact layout instructions. A tool that guesses can damage spacing or substitute the wrong glyphs. FileGizmo therefore does not label visual cover-and-replace as native text editing. To replace a visible line, place a Cover block over it and add a new text box. The underlying text may still exist, so that method is not suitable for confidential redaction.

Region highlighting is intentionally honest too. You draw a translucent rectangle over the area you want to mark; the editor does not pretend it selected semantic text when it did not. Underline and strikethrough marks are also positioned regions. This approach works on scanned pages and ordinary PDFs alike, while keeping placement predictable.

Edits are written with vector PDF operations wherever possible. Text remains text, shapes remain vector graphics, and untouched pages are not rasterized. An uploaded image or freehand drawing is embedded only as its own image object. That preserves the quality and searchability of the rest of the document.

Your edit state is autosaved to IndexedDB on this device with a file fingerprint, not silent source-file storage. If the tab closes unexpectedly, return to the editor, choose Restore, and reselect the same file. FileGizmo verifies the fingerprint before reapplying your objects. Saved work expires after seven days and can be cleared at any time.

Before sharing the result, open the downloaded PDF in a separate reader. Check every modified page, test each link, confirm that cover blocks do not hide something unintentionally, and keep the untouched original. If a document contains an existing cryptographic signature, remember that any edit can invalidate that signature’s assurance.