Add a text or image watermark to PDF pages — diagonal, tiled or anchored, over or under the content.
PDF Editing & Annotation
PDF Editing & Annotation Tools
From a single watermark to a full editing session: these tools write real PDF content and annotations with pdf-lib and pdf.js, so what you add is visible in every reader and, where it is text, remains selectable. Arabic and Devanagari are typeset with embedded fonts, not pictures of text.
Focused pages — watermark, page numbers, header and footer, background, resize — cover the everyday jobs; the full editor and its presets (sign, highlight, whiteout, crop, redact) handle the rest. All of it runs on your device.
Tools in this category
Add headers and footers to a PDF — left, centre and right zones with page numbers, file name and date.
PDF Editing & Annotation
Number the pages of a PDF in any position and format — 1, 2, 3 or "Page 1 of 10" — starting from any number.
PDF Editing & Annotation
Change the page size of a PDF — to A4, Letter, a custom size in millimetres or a scale factor — without losing quality.
PDF Editing & Annotation
Change the background of PDF pages to a colour or an image, behind the existing content.
PDF Editing & Annotation
Edit a PDF in your browser: add text, images, drawings, highlights, shapes, notes, signatures and stamps, white out, crop, redact and manage pages.
PDF Editing & Annotation
Type text anywhere on a PDF — choose the font size, colour, alignment and bold — and save it as real, searchable text.
PDF Editing & Annotation
Place a JPG, PNG or WebP image on a PDF page, then move and resize it — a logo, a photo, a scanned signature.
PDF Editing & Annotation
Draw freehand on a PDF with a pen, mouse or finger — plus straight lines, arrows, rectangles and ellipses.
PDF Editing & Annotation
Highlight text in a PDF by dragging over it — real highlight annotations that snap to the words, in any colour.
PDF Editing & Annotation
Underline text in a PDF by dragging over the words — a real Underline annotation that follows each line.
PDF Editing & Annotation
Strike through text in a PDF — drag over the words to add a StrikeOut annotation that marks them for deletion.
PDF Editing & Annotation
Add sticky-note comments to a PDF — click to place a note, type the comment and your name; readers show it as a standard annotation.
PDF Editing & Annotation
Cover parts of a PDF with opaque white boxes and type over them — to hide content from view, not to remove it.
PDF Editing & Annotation
Crop PDF pages visually — drag the area to keep on the page and apply it to one page or all of them.
PDF Editing & Annotation
Sign a PDF by drawing your signature, typing your name or uploading an image, then place and resize it on the page.
PDF Editing & Annotation
Add APPROVED, DRAFT, CONFIDENTIAL, PAID or a custom text stamp to a PDF page — or stamp an image.
PDF Editing & Annotation
Draw rectangles, ellipses, lines and arrows on a PDF — outline or filled, any colour, any width — to point things out.
PDF Editing & Annotation
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