Mark up any PDF with comments of different styles — sticky notes, highlights, underline, strikeout, text boxes, shapes, arrows and freehand ink, in any colour. It all runs in your browser.
No account · no install · nothing uploaded · MIT open source
# annotate a PDF — 3 steps 1. Import drop your PDF 2. Mark up note · highlight · shape · arrow 3. Export download the annotated PDF
Open the studio's 📄 PDF tab to start.
Add comments and markup, then export them baked into the file.
Drop your PDF and open the page you want to comment on.
Pick a tool — note, highlight, underline, strikeout, text, rectangle, ellipse, arrow or ink — choose a colour, and draw on the page.
Click Export PDF to download the file with your annotations flattened in.
Open the PDF tab, import your PDF, pick an annotation tool (note, highlight, shape, arrow and more), choose a colour, draw on the page, then Export PDF.
Sticky notes, highlight, underline, strikeout, free-text boxes, rectangles, ellipses, arrows and freehand ink, in any colour.
Yes. On export the annotations are flattened onto the pages, so they show in any PDF viewer.
Yes. It runs entirely in your browser, so your document is never uploaded.
Add notes, highlights and shapes, then export the annotated PDF — free.