Edit & mark up
Watermarks, page numbers, headers, Bates stamps, form filling and annotations.
Watermark PDF On-deviceStamp diagonal text across every page.Add page numbers On-deviceStamp page numbers, format 'Page {n} of {total}'.Add header & footer On-deviceStamp a header and/or footer line on every page. {page} and {total} placeholders are substituted per page.Bates numbering On-deviceStamp sequential Bates numbers (prefix + zero-padded counter) on every page.Fill PDF form On-deviceFill AcroForm fields by name. Values: strings for text fields, true/false for checkboxes, numbers are stringified.Read form fields On-deviceList all AcroForm fields with names, types, current values and locations (JSON).Add text to PDF On-deviceWrite text at an exact position (points, top-left origin) on one page.Add image to PDF On-devicePlace an uploaded image (SECOND file) onto a page of the PDF (FIRST file) at an exact position.Highlight text / regions API · MCPAdd highlight annotations: every occurrence of a search text, and/or explicit rects per page.Remove annotations On-deviceDelete annotations (highlights, notes, stamps, links, …). Form field widgets are kept unless requested.Create bookmarks API · MCPAdd a PDF outline from a supplied list of {level, title, page} entries, or auto-detect headings from larger-than-body text.Edit metadata On-deviceSet document information fields (title, author, subject, keywords, creator, producer). Pass an empty string to clear a field.Create form fields On-deviceAdd fillable form fields (text, checkbox, dropdown) at given pages and rectangles. Pairs with fill_form and read_form_fields.
Keep exploring
All of it is free — see the features tour for how the web tools, MCP server and API fit together, and the pricing page for the (very short) usage policy.