Use the free PDF Shape Drawer below: upload a PDF, adjust the settings, and download your new PDF. Your file never leaves your browser — all processing happens on your device, and nothing is uploaded to any server.
Mark up a PDF with shapes
Sometimes words are not the best way to point at something. A rectangle around a clause in a contract, a circle around a mistake on a worksheet, or a line under a total on an invoice says more, faster. This free tool draws rectangles, circles, and lines onto your PDF pages. You set the shape, the color, and the position, and download a marked-up PDF in seconds.
Teachers love this for marking work. Instead of describing where an error is, they circle it. Reviewers mark sections of a draft that need attention. Home users circle items on a printed plan, a map, or a form. Because the shapes are drawn onto the PDF itself, anyone who opens the file sees exactly what you meant.
How to draw a shape on a PDF
Upload your PDF and choose a shape. Rectangles and circles need a width and a height, while a line uses the width as its length and ignores the height. Set the X position from the left edge and the Y position from the top edge, both in points, and pick a color. Red draws the eye, blue looks calm and professional, and black suits formal documents. Choose the pages, press the button, and download.
Finding the right coordinates takes one or two tries the first time. A page is usually 595 points wide and 842 points tall, so X 100 and Y 100 sits near the top-left corner, while X 300 and Y 400 sits near the middle. If a shape lands in the wrong place, adjust the numbers and run the tool again from the original. Each attempt is free.
Practical marking ideas
Rectangles are best for highlighting a paragraph, a table, or a block of text. They frame the area without covering it, since the shape is only an outline. Circles are best for single words, numbers, and small errors, because the eye follows a circle naturally. Lines are best for underlining totals, crossing out items, and drawing attention to a single row in a table.
Combining shapes tells a fuller story. A teacher might circle three errors and draw a line under the final grade. A reviewer might box a paragraph that needs rewriting and underline the key sentence inside it. Because each run draws one shape, build up complex markups with several runs, each starting from the previous result.
Tips for clean markups
Keep shapes generous. A tight rectangle around text can clip letters and look cramped, while a little breathing room looks deliberate. Use one color for one kind of mark, so readers learn the system: red for errors, blue for suggestions, black for final notes. Avoid stacking many shapes on one page, or the page becomes harder to read than it was before marking.
Remember that coordinates are measured from the top-left corner, like reading a page. If you are used to design tools that measure from the bottom, this will feel reversed at first, but it matches how you look at the document, which makes guessing positions easier.
Limits and privacy
The tool draws simple outlines only. It cannot fill shapes with color, draw arrows, add freehand scribbles, or place text inside a shape. For arrows and filled highlights, combine this tool with the text adder or the highlighter. Shapes are permanent in the downloaded PDF, so keep your original file if you may want an unmarked copy later.
All processing happens in your browser. Your PDF is never uploaded, no account is needed, and no copy is stored. That makes the tool safe for contracts, schoolwork, and private documents.
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