What kinds of marks can I add?

Sticky notes as real text, highlight bands, and freehand pen strokes — placed anywhere across the document.

Do annotations stay editable text?

Notes are embedded as genuine text, so they remain selectable and searchable in the output; the page’s original text is untouched.

Can I remove a mark before saving?

Yes — marks stay editable until you apply, so you can add and remove freely, then stamp them all at once.

Annotate a PDF

Mark up a document like you would on paper: click to drop a note, drag to highlight a line, scribble with the pen. Place marks across any pages, remove any you regret, then stamp them all in one go.

Notes are embedded as real text — still selectable and searchable in the saved file — and the page's own text is never re-flowed or rasterized.

Mark up like paper

Click to drop a note, drag to highlight a line, scribble with the pen. Place marks across any pages, remove any you regret, then stamp them all in one go. Notes are embedded as real text — still selectable and searchable in the saved file — and the page’s own text is never re-flowed or rasterised.

How it works

Drop a PDF and open Annotate.
Click for notes, drag for highlights, draw with the pen.
Apply and download.

Like every pixelpix tool, this runs 100% in your browser: your file is never uploaded to a server, never leaves your device, and works even offline once the page has loaded.

Frequently asked questions

What kinds of marks can I add?: Sticky notes as real text, highlight bands, and freehand pen strokes — placed anywhere across the document.
Do annotations stay editable text?: Notes are embedded as genuine text, so they remain selectable and searchable in the output; the page’s original text is untouched.
Can I remove a mark before saving?: Yes — marks stay editable until you apply, so you can add and remove freely, then stamp them all at once.

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