# PNG to PDF Converter

> A PNG to PDF converter wraps an image in a PDF page so it can be emailed, printed or attached where an image file is not accepted. This one builds the PDF in your browser from the image you choose, so nothing is uploaded and there is no watermark.

Source: https://rankcert.com/tools/png-to-pdf
Free, no signup. Updated: 2026-09-02

## How to use it

1. Choose or drop the PNG you want to convert.
2. Set the quality - the image is embedded as a JPEG stream inside the PDF.
3. Download the PDF. The page is sized to the image, so nothing is cropped.

## Questions

### How do I convert a PNG to PDF without uploading it?

Use a converter that runs in the browser, like this one. The image is decoded on a canvas and the PDF is assembled locally, so the file never reaches a server.

### Will the PDF have a watermark?

No. Nothing is added to the page - the PDF contains your image and nothing else.

### What page size does the PDF use?

The page matches the image's pixel dimensions at 72 points per inch, so the image fills the page exactly with no borders or cropping.

### Can I put several PNGs into one PDF?

Not here - each conversion produces a single-page PDF. To combine them, convert each and merge the PDFs in Preview on macOS or any PDF merger.

### Does converting reduce the image quality?

Slightly. The image is stored as a JPEG stream inside the PDF, which is what keeps the file small. Raise the quality slider if you need a near-lossless result.

### Why is my PDF so large?

Because a photograph at full resolution is large. Lower the quality slider, or resize the image first - a 4000px wide image is far more than a printed page needs.

### Does transparency survive the conversion?

No. PDF pages are opaque, so transparent areas are filled with white. Keep the PNG if you need the alpha channel.

### Can I convert a PDF back to PNG?

Yes - use the PDF to PNG converter, which rasterises every page at twice its natural size.

## Related tools

- [Image Color Picker](https://rankcert.com/tools/image-color-picker): Click anywhere on an image to read the exact colour as HEX, RGB and HSL, and keep a palette of everything you picked. Nothing is uploaded.
- [PDF to PNG](https://rankcert.com/tools/pdf-to-png): Render every page of a PDF as a high-resolution PNG in your browser. Nothing is uploaded, there is no page limit and there is no watermark.
- [PNG to JPG](https://rankcert.com/tools/png-to-jpg): Convert a PNG to JPG in your browser with a quality slider, and see exactly how much smaller the result is before you download it.
- [JPG to PNG](https://rankcert.com/tools/jpg-to-png): Convert a JPG to lossless PNG in your browser, ready for editing, transparency work or any tool that refuses JPEG.
- [Color Converter](https://rankcert.com/tools/hex-to-rgb): Convert HEX to RGB and back, get the HSL equivalent, and see the contrast ratio against white and black for accessibility checks.
- [Color Mixer](https://rankcert.com/tools/color-mixer): Mix paint colours and see the result instantly. Answers what colours make brown, green, orange and purple using real subtractive mixing, not screen colours.