How many PNGs can I combine?

Up to 60 in one go. For very large batches, split into smaller groups and merge the resulting PDFs with our Merge PDF tool.

How big can each PNG be?

There's no fixed limit, but very large images (>50 MP) will use noticeable browser memory. The output PDF stays roughly the same size as the sum of inputs.

How many PNGs can I combine?

Up to 60 in one go. For very large batches, split into smaller groups and merge the resulting PDFs with our Merge PDF tool.

How big can each PNG be?

There's no fixed limit, but very large images (>50 MP) will use noticeable browser memory. The output PDF stays roughly the same size as the sum of inputs.

PNG to PDF

Combine one or many PNG images into a PDF — alpha-channel transparency is preserved (PDF 1.4 transparency groups).

Your files never leave your browser. All processing happens on your device — nothing is uploaded.

1. Upload your files (min 1)

Drop PNG files here

or click to browse (max 60)

Need at least 1 file (have 0).

How does the PNG to PDF work?

Combine PNG images into a single PDF. Drop one image or up to 60 — the order you select them in is the order they appear in the PDF. By default each PNG gets its own page sized to the image, so quality stays pixel-perfect. If you need a uniform page size (Letter or A4), pick one from the dropdown and the images are scaled-to-fit and centered. Alpha-channel transparency from the source PNG is preserved in the output PDF (PDF 1.4 transparency groups), so transparent regions stay transparent in modern viewers — they show whatever is underneath the image (the page background).

🔒 Security & Privacy

All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.

📱 Use it on any device

Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.

⚡ Quick & easy

Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.

🎁 Always free, no signup

Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.

Frequently asked

Yes — PDF 1.4 introduced alpha-channel transparency, and we embed PNG alpha verbatim. Transparent regions render transparent in modern viewers (Adobe Reader, Preview, Chrome). The page background is white by default, so visually transparent ≈ white in fit-page mode.