Use the free PDF Image Stamper 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.
Put your logo on every page
A logo makes a document look like it belongs to you. This free tool stamps an image, usually a logo, onto the PDF pages you choose. Upload your PDF, upload your image, pick a corner and a size, and download a new PDF with the image in place. It is the fastest way to brand invoices, reports, worksheets, and certificates without opening a design program.
Small businesses use this constantly. An invoice with a logo looks more trustworthy than a plain one. A quote with a logo is easier to recognize in an inbox. A certificate with a logo looks official. Schools and clubs use it too, stamping a crest or emblem onto letters, programs, and awards.
How to stamp an image onto a PDF
First upload the PDF. Then upload the image file, either a PNG or a JPG. PNG files with a transparent background work best, because the logo appears without a white box around it. JPG files always carry a rectangular background, so they suit photos and solid logos. Next, choose the position and the width in points. A width of 100 to 150 points suits a corner logo, while a larger width suits a centered emblem.
Choose the pages as well. Typing all stamps every page, which is right for branding. Typing a single number stamps only that page, which is right for a cover or a signature page. Press the button and download the result. If the logo looks too big or too small, run the tool again from the original with a different width.
Choosing a good logo file
Use the highest quality logo you have. A small, blurry logo will look worse when enlarged, even slightly. A PNG with transparency is ideal, and most logo files supplied by designers already come in that form. If your logo has a white background and your PDF page is also white, the result still looks clean, so do not worry if you only have a JPG.
Keep the stamped image modest. A logo that dominates the page distracts from the content and looks unprofessional. A corner logo at a tenth of the page width is usually enough. If the logo must be noticed, like on a certificate, a centered placement at a larger size works better than a corner placement at the same size.
Other uses beyond logos
The tool is not only for logos. Teachers stamp a star, a badge, or a mascot image onto reward certificates. Event organizers stamp a sponsor image onto programs. Photographers stamp a small watermark image onto proof sheets. Anyone can stamp a signature image onto a page, which is a practical alternative to printing, signing, and scanning.
For a signature, use a PNG of your signature on a transparent background, stamped small in a bottom corner or above a signature line. The result looks neat and saves a full print-and-scan cycle. Remember that a stamped signature image is not a certified digital signature, so it suits informal approvals rather than legal contracts.
Limits and privacy
The tool places one image at one size on the pages you choose. It cannot rotate the image, adjust its opacity, or place different images on different pages in a single run. For those effects, run the tool more than once, or use a design program. Very large image files may slow the tool down, so resize huge photos before stamping.
Your files never leave your browser. Both the PDF and the image are processed on your device, with no upload and no stored copy. That matters when the image is a logo, a signature, or a private photo.