Grab the pen, pick a colour and thickness, and draw straight onto the page — circle a figure, point an arrow, scribble a note or mark up a diagram. It all happens in your browser.
Open your PDF to start Free to edit · no account · $1 only when you downloadSometimes a comment box will not cut it — you want to physically circle the total, sketch an arrow to the clause that matters, or scrawl a tick beside the right answer. The freehand draw tool lets you do exactly that. Pick up the pen, choose a colour, set the line thickness, and drag across the page. Your strokes follow the cursor (or your finger on a touchscreen) and land wherever you draw, over text, images or blank space alike.
Because everything runs inside your own browser, the PDF you drop in never leaves your device — nothing is uploaded to a server and there is no account to create. That matters when you are marking up a contract, a signed form or a medical scan that you would rather not hand to a third party. You draw on your copy, on your machine, and the file stays private the whole time.
Editing is free, so you can circle, arrow and scribble to your heart's content, undo the messy strokes, and try a thicker line or a brighter colour until the markup reads clearly. You only pay a single $1 when you want to download the finished PDF — no subscription, no monthly $10–30 plan, no watermark stamped across your drawing, and no card saved for a surprise renewal.