Edit, merge, compress and sign PDFs without uploading them anywhere.

What the text editor can and cannot do

Editing text in a PDF is not like editing a document: a PDF stores positioned glyphs, not paragraphs. Being clear about the trade-offs is more useful than pretending they are not there.

What works well

• One line at a time. Every run of text in a single font, size and baseline becomes its own editable block — so a bold word inside a sentence stays separate and keeps its weight.
• Position, size and colour are preserved. The baseline, rotation, horizontal scaling and both the text and background colours are taken from the file and the rendered page.
• Everything else in the file is untouched. Images, vector art, annotations and the pages you did not edit are carried over as they were.

The honest limitations

• Replacement text is redrawn in a substitute font. Fonts inside a PDF are usually subsets containing only the glyphs the document already uses, so they cannot spell new words. The tool picks the closest built-in face — Helvetica, Times or Courier, with bold and italic — and you can load your own .ttf/.otf for an exact match or for scripts the built-ins cannot write.
• The old text is covered, not deleted. A rectangle in the sampled background colour is painted over it. On a flat background this is invisible; over a photograph or a gradient it will show, and you can set the colour by hand.
• Text does not reflow. Changing one line does not re-wrap the paragraph. If your replacement is longer you can let it overflow, shrink the point size, or squeeze it into the original width.
• Not a redaction tool. The original characters remain in the file underneath the cover. Do not use this to hide sensitive information.