PNG to PDF

Convert your PNG files to PDF, right here in your browser.

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... or drop files here

Files never leave your device

Add a PNG file to convert.

Frequently asked questions

What is actually inside a PNG file?

A .png file stores a grid of pixels compressed losslessly, so every save keeps the exact values the previous one had.

Are my files uploaded to a server?

No. Your PNG file is read and the PDF is built entirely inside your browser, so nothing ever leaves your device.

Can I convert several files at once?

Yes. Add as many PNG files as you like and download the PDFs one by one, or all together as a ZIP archive.

Will the layout look exactly like the original?

The text, headings, lists and tables carry over and are laid out onto clean A4 pages. This is a content-faithful conversion rather than a pixel-perfect copy of the original formatting.

Is there a file size or file count limit?

No. Everything runs on your own device, so the only practical limit is how much memory your browser has available.

Do I need to install anything?

No. There is nothing to install and no account to create — the converter runs in any modern browser, on desktop and mobile alike.

Is any quality lost?

None. PNG is lossless and the data is embedded into the PDF rather than decoded and re-encoded, so there is no compression step in which anything could be lost. What is in the PDF is exactly what was in your file.

What happens to transparent areas?

They stay transparent — the alpha channel is carried into the PDF rather than being flattened onto white. In practice that shows as white, because viewers render pages white, but a dark-themed viewer or a PDF placed over a coloured background will show that colour through. If the background must be guaranteed, add one in your image editor before converting.

What page size do I get?

One matched to your image: pixels mapped to points at 96 per inch, so the picture fills the page exactly with nothing cropped or padded. Different-sized images give different-sized pages, which only matters when printing — use "fit to page" there.

Can I put several PNGs into one PDF?

Not from this page, which makes one PDF per image. The Images to PDF tool does exactly that, and lets you set the page order before converting, which is what you want for a set of screenshots forming a walkthrough.

Should I convert my photos as PNG?

No — use the JPG to PDF page. A photograph stored losslessly can be many times larger than the equivalent JPEG with no visible improvement, because there is little repetition in continuous-tone detail for lossless compression to exploit. PNG earns its place with screenshots, diagrams and text.

Is my image uploaded anywhere?

No. It is read and embedded inside your browser tab, and the PDF is written on your device. Screenshots often contain more than their subject — an email in the background, a name in a title bar — and none of it goes anywhere.

PNG is the format to reach for when an image must not be approximated. Its compression is lossless, so the pixels that come out are exactly the pixels that went in — which is why screenshots, diagrams, logos, charts and anything containing text belong in PNG rather than JPEG, where lossy compression leaves visible fringing around every hard edge.

PDF can store PNG data directly, and this converter does. The image is embedded rather than decoded and re-encoded, so a lossless format stays lossless all the way into the document: no quality setting is applied anywhere and nothing is resampled.

The one thing worth knowing before you start concerns transparency, which PNG has and which behaves in a specific way once it is inside a PDF.

How to convert PNG to PDF

Add your PNG files
Drop them in or choose them, as many as you like. Each becomes its own PDF named after the original.
Convert
Each image is embedded into a page sized to match it. No re-compression happens at any point.
Download
Save the PDFs. Your images are unchanged and nothing was uploaded.

Transparency, and what it does in a PDF

PNG supports an alpha channel — per-pixel transparency — and that channel is carried into the PDF rather than being flattened onto white first. A logo with a transparent background stays transparent.

Which sounds ideal, and mostly is, but transparency in a PDF means "whatever is behind it shows through", and what is behind it is the page. Viewers overwhelmingly render a page as white, so a transparent logo looks like a logo on white and everything is fine. In a viewer with a dark theme, or when the PDF is placed into another document over a coloured background, the transparent areas take that colour instead — and white text on a transparent background, which looked correct in your image editor, becomes invisible.

If the image needs a guaranteed background, add one in your editor before converting. It takes a moment and removes the ambiguity entirely.

Page sizing

The page is built to fit the image, not the other way round. Pixels become PDF points at 96 per inch, so a 1200×800 screenshot produces a 900×600-point page with the image filling it exactly — no cropping, no white margin, no letterboxing.

Images of different sizes therefore produce pages of different sizes. That is invisible on screen and occasionally awkward at a printer, where "fit to page" in the print dialog is the setting that sorts it out.

What PNG is good at, and where it is the wrong choice

Screenshots: The ideal case. Interface text, thin lines and flat colour all survive losslessly, where JPEG would soften every edge permanently.
Diagrams, charts and line art: Large areas of flat colour compress extremely well in PNG, so the file is often smaller than the JPEG equivalent and visibly better.
Logos and anything needing transparency: PNG is the only common raster format with a usable alpha channel, and it is carried through into the PDF.
Photographs: The wrong choice. A photograph as PNG can be five to ten times the size of the same image as a good-quality JPEG, with no visible benefit, because lossless compression has little to work with in continuous-tone detail. Convert photographs through the JPG to PDF page.
Very large images: Worth watching. A lossless multi-megapixel screenshot embeds at full size, so the PDF inherits that size. Nothing is resampled to reduce it.

About the PNG format

.png is the raster image format W3C introduced in 1996. It is published as an open specification under the name ISO/IEC 15948, so a file can be read without the program that wrote it.

A .png file stores a grid of pixels compressed losslessly, so every save keeps the exact values the previous one had.

Files like this usually come out of Figma, Photoshop, and GIMP.