Convert
Convert PNG images to PDF
Drop in one PNG or forty and get a single PDF, one image per page.
PNG brings a choice a photograph does not: it can be written into the document losslessly, which keeps screenshots, diagrams and anything with text perfectly crisp at the cost of a larger file, or re-encoded with lossy compression, which is much smaller and slightly softens sharp edges. Screenshots and line art almost always want the lossless route - compression artefacts are most visible exactly where PNG is most used.
How to convert PNG images to PDF
- Drop in your PNG files. Add more later and they go on the end.
- Choose lossless for screenshots and diagrams, or lossy for a smaller file.
- Drag to reorder if the sequence matters.
- Save the PDF. It was built here, not on a server.
Supported formats
This tool accepts PNG files. Everything is decoded by your own browser, so the formats available depend on what your browser can open - which for HEIC in particular varies between Safari and other browsers.
Frequently asked questions
Should I keep PNG lossless in the PDF, or convert to JPEG?
Keep it lossless when the image has text, sharp lines, screenshots or flat colour - that is what PNG is for, and JPEG compression smudges precisely those edges. Choose JPEG when the PNG holds a photograph, which happens often because a design tool exported it that way. The file size difference can be large: a full-page screenshot can be several times bigger losslessly.
Why is my PNG PDF so large?
Because lossless means lossless. A PNG stores every pixel exactly, and putting it into a PDF without re-encoding keeps that. If the file matters more than the crispness, switch to JPEG for the conversion, or reduce the image dimensions before converting - a screenshot at half the width is roughly a quarter of the data.
Does the transparency survive?
PDF pages are opaque, so transparent areas are composited onto white. That is the honest answer rather than a surprise later: if your PNG relies on transparency over a coloured background, flatten it against the colour you want before converting.
Is my image uploaded?
No. The document is assembled in your browser and saved directly from it. Your images are not sent anywhere, which the site's own network policy enforces rather than merely promising.
Related tools
- Image to PDFCombine JPG, PNG and WebP images into a single PDF, in the order you choose.
- JPG to PDF ConverterTurn JPG photos into a PDF in your browser.
- Photo to PDF ConverterTurn phone photos into a single PDF in your browser.
- PNG CompressorMake PNG files smaller in your browser while keeping transparency.
- PNG to JPG ConverterConvert PNG images to JPG in your browser with control over quality and background colour.
Looking for something else? Browse all ImageUtility tools.