How to Convert PNG to PDF

PNG is a lossless image format that supports transparency, making it ideal for screenshots, logos, icons, and graphics with sharp edges. PDFs, on the other hand, are universal documents that everyone can open. Converting PNG to PDF lets you share multiple images as a single file, which is more convenient than sending a folder of loose PNGs.

Common use cases include assembling a portfolio of design mockups, sharing a sequence of annotated screenshots, or converting a batch of UI graphics into a single review document for stakeholders.

PDF also handles mixed content well — you can combine PNG, JPG, and WebP images in the same PDF, which isn't possible when sharing raw image files in bulk.

Open the PNG to PDF tool in any modern browser.

Drag your PNG files into the upload area, or click to browse and select multiple files. You can mix PNG, JPG, and WebP files in the same upload.

Reorder the images by dragging them within the upload list. The order determines the page order in the final PDF.

Click the Convert to PDF button. The tool places each image on its own PDF page, sized to match the image dimensions.

Click Download to save the PDF. The output is a standard PDF with no watermark.

PNG supports alpha channel transparency, meaning parts of an image can be see-through. PDFs don't natively support transparency in the same way, so when you convert a PNG with transparency to PDF, the transparent areas need to be filled with a background color.

The tool on this site composites each PNG onto a white background, which is the most common choice for documents. White blends naturally with most printed pages and screen backgrounds, making the transparency invisible in the final PDF.

If you need a different background color (say, black for a dark-mode design review), you can either composite the PNG yourself in an image editor before uploading, or use a PDF editor to change the page background after conversion.

The visible content of the PNG — logos, icons, screenshots — comes through cleanly. Only the transparent pixels are filled with the background color.

PNG is lossless, so there's no quality loss during conversion. The PDF embeds the PNG data directly, and the visible result is identical to the source image.

File size can be a concern with PNGs, which are often larger than JPGs for photographic content. A 10 MB screenshot becomes a 10 MB PDF page. If you're combining many large PNGs, the final PDF can grow quickly.

To keep the PDF manageable, consider compressing PNGs before conversion. Tools like TinyPNG (browser-based) can reduce PNG file size by 50–80% with no visible quality loss. The reduced PNGs then produce a smaller PDF.

For screenshots with text, keep the PNG format — JPG compression introduces artifacts around text that make it look blurry. For photographs, consider converting to JPG before placing into the PDF.