How to add an image or logo to a PDF (free, no upload)

A letterhead that needs your logo, an invoice that needs a "PAID" stamp, a contract that needs the signature image you scanned years ago — plenty of PDF jobs come down to placing one picture on one page. Most online PDF tools make that a two-file upload: the document goes to a server, the image goes to a server, and you download what comes back.

Neither file needs to travel. The pdfmend editor has an Image tool that places a PNG or JPEG from your device onto any page, lets you resize and position it, and exports the result — all inside your browser. The document is never uploaded, and neither is the image.

• The PDF, on your device (up to 100 MiB and 250 pages during the free launch).
• The image as a PNG or JPEG file. A PNG with a transparent background works best for logos and signatures, because the page shows through around the artwork.
• Any modern browser. No account, and no watermark on the export.

1. Open the editor and choose your PDF. The file is read locally by your browser.
2. Select the Image tool in the toolbar.
3. Pick the PNG or JPEG from your device. The image is loaded straight into the editor on your machine — it is not sent to a server.
4. Click the page where the image should sit. It appears as a stamp you can move freely.
5. Drag a corner to resize it, then drag the stamp into its final position. Zoom in for precise placement — useful when a logo has to sit inside a header or a signature has to land on a line.
6. Add the stamp to other pages the same way if you need it more than once.
7. Click Export PDF. The finished document, image included, is generated in your browser and saved to your device.

The resize handles adjust width and height independently — there is no aspect-ratio lock — so drag carefully and keep an eye on the image's shape while you scale it, or a logo can end up stretched or squashed. A few placement habits help:

• Resize before you fine-tune position — a stamp at its final size is easier to align.
• Use Zoom at high magnification for anything that must sit on a ruled line, like a signature or an initials box.
• If a stamp lands wrong, drag it again or use Undo; nothing is final until you export.
• Check one exported page before doing a long document, so you confirm the size looks right in a normal viewer at 100%.

• A logo on documents. Drop your company mark on a proposal, quote, or letter that was generated without one.
• A stamp. A "PAID", "APPROVED", "COPY", or "DRAFT" image placed on the relevant pages does the job of a rubber stamp.
• A scanned signature image. If you already have your signature as a PNG or JPEG, stamp it onto the signature line. If you do not have one, the Signature tool lets you draw one directly instead — the signing guide compares both routes. Either way this is a visible mark, not a certificate-backed digital signature.
• A photo as evidence. Attach a photo of a receipt or a defect to the page of a claim form that references it.

Going the other direction — turning a folder of images into a PDF of their own — is a different feature, covered in the guide on building a PDF from images.

Logos are harmless, but signature images are not: a clean scan of your signature is exactly what someone needs to fake your consent. That is the strongest reason to place images locally. In pdfmend there is no upload operation for the document or the image — both are read by your browser, combined by your browser, and written to a file on your device. No copy exists for a service to retain, as the privacy page explains.