Add an Image to a PDF Online

Adding a picture to a PDF is useful when a document needs a logo, signature image, stamp, photograph, or other visual element without rebuilding the original file. This free online tool overlays one PNG or JPEG image on one selected page of an existing PDF. You choose the page and enter the image rectangle, so the result is repeatable rather than dependent on an imprecise drag.

How to add an image to a PDF

Start by uploading the PDF that should receive the image. The document remains the base of the output: its pages stay in the same order and their dimensions do not change. Next, select one PNG or JPEG image. These formats are embedded directly, preserving the submitted image data without requiring a separate image-conversion service.

After choosing the files, enter the page number and rectangle values. The page number starts at 1. The position and dimensions use PDF points. Enter the x and y coordinates for the lower-left corner, followed by the desired width and height. When you choose Add image to PDF, the image is drawn over the existing page content at that rectangle. Download the resulting PDF when processing finishes.

Understanding PDF points and placement

PDF pages use a coordinate system that begins at the lower-left corner. Increasing x moves the image right, and increasing y moves it upward. A placement of x 36 and y 36 leaves a half-inch margin from the left and bottom edges because 72 PDF points equal one inch. Width and height are also measured in points, not pixels.

This explicit coordinate system is useful for repeatable documents. For example, a 120 by 90 point rectangle can be used for a small mark in the same location on every copy of a form. The tool checks that the rectangle remains inside the selected page, so an accidentally oversized image is rejected instead of being silently clipped. The image is not automatically resized proportionally: width and height are the final output dimensions you provide.

Tips for a clean overlay

Choose the correct page

Count pages from the beginning of the PDF and verify the number before processing. The selected page is the only page that receives the image. Other pages remain part of the output and are not given an overlay.

Measure before you place

If the image belongs in a known form field, measure the field in points or convert from inches by multiplying by 72. Keep the x, y, width, and height values together so the placement can be reproduced later. Leave a small margin when the image should not touch nearby text.

Prepare the image

Use a PNG for graphics that need crisp edges or transparency and a JPEG for photographs. The tool accepts one image per operation. If a document needs several images, add them in separate operations, checking each output before continuing.

Privacy, supported files, and limitations

Processing happens on the PDF-File.com server using the uploaded PDF and image only for this operation. The normal temporary-file cleanup process removes uploaded job data after the configured retention period. Do not upload material unless you are authorized to process it, and keep a local copy of important originals.

This tool is intentionally focused: it places one PNG or JPEG on one page. It is not a general canvas editor, does not provide freeform multi-page batch placement, and does not edit image transparency or rotate the image interactively. It also does not accept arbitrary image formats. For a different file type, convert it to PNG or JPEG first using an appropriate local tool.

The output is a standard PDF that can be opened in ordinary PDF readers. Because the original page size is retained and the image is drawn as an overlay, existing content stays underneath the new image. If the image covers text, choose a smaller rectangle or a different position and process the original PDF again.

Frequently Asked Questions

Can I add an image to any PDF page?

Yes. Enter a page number from 1 through the number of pages in the uploaded PDF. The image is added only to that selected page.

What image formats are supported?

The tool supports PNG and JPEG images. It rejects unsupported image types rather than guessing how to decode them.

Where does the image appear?

The image appears at the x and y position you enter, measured from the page's lower-left corner, with the exact width and height you specify in PDF points.

Will the image stretch?

The output uses the width and height values you provide. To preserve an image's aspect ratio, calculate a matching rectangle before submitting it.

Can I place images on multiple pages at once?

No. The current tool deliberately handles one image on one selected page. Repeat the operation for additional placements.

Does adding an image change the PDF page size?

No. The page size and page count remain unchanged, and pages other than the selected page retain their existing content.