Free PNG to PDF format converter

PNG to PDF format instant and free

Drop one PNG or fifty, press Convert, and download a properly formatted PDF — no signup, no watermark, no upload. Everything happens in this browser tab: JavaScript reads the pixels, builds the pages and hands you the finished document.

Want to combine many images into a single document? Merge PNG to PDF is set up for that workflow.

100% free
No signup
No upload
Lossless
Up to 50 files

Drop PNG files here, or click to chooseUp to 50 pictures per PDF, 50 MB each. PNG, JPG, WebP, GIF, BMP and AVIF all work — and you can paste a screenshot with Ctrl + V.

Page size

Orientation

Margin

Image quality

File name

.pdf

Combine into one PDFOff: one PDF per picture, downloaded together as a .zip

Nothing is uploaded — conversion runs in this tab

Defaults: fit-to-image pages, no margin, lossless quality — every PNG pixel preserved in the PDF format.

How to convert PNG to PDF format

Four steps, no server involved. Your files stay in this tab from start to finish.

Add your PNG files
Drag one or more PNG files onto the drop zone, or click it to open a file picker. Up to 50 images at once, each up to 50 MB. Screenshots, diagrams, logos and scans all work.
Arrange the page order
Thumbnails appear in the order they will become PDF pages. Drag them to rearrange, use Sort A→Z for numbered filenames, or rotate any image that came in sideways.
Pick your page layout
Fit to image keeps each page the exact size of the PNG — no white borders. Switch to A4 or US Letter for printable layouts. Lossless quality preserves every pixel; Compact re-encodes as JPEG for a smaller file.
Convert and download the PDF
Press Convert to PDF. JavaScript in this tab builds the file — nothing is uploaded. A download button appears with the page count and file size. One PDF with all images, or tick 'Separate PDFs' for one per image in a .zip.

Technical specifications

Input formats	PNG (primary), plus JPG/JPEG, WebP, HEIC/HEIF, AVIF, GIF and BMP
Output format	PDF 1.7 — one image per page, no password, no watermark
Batch limit	50 images per PDF, 50 MB per image
Maximum resolution	16 megapixels per image; larger files are scaled down to the browser's canvas limit
Default page setup	Fit to image at 96 DPI (1 px = 0.75 pt), no margin
Other page sizes	A4 (210 × 297 mm) or US Letter (8.5 × 11 in) with adjustable margins
Default quality	Lossless — PNG pixels stored via /FlateDecode, identical to the source
Compact mode	Re-encodes as JPEG at quality 85 (/DCTDecode) — smaller output, visually indistinguishable on photographs
Transparency	Rendered onto a white background before embedding (PDF pages are opaque)
Processing location	Your browser tab — Canvas 2D and Compression Streams, no server involved
Price	Free, no signup, no watermark, no daily quota
Offline use	Works with the network disconnected once the page has loaded
Browser support	Chrome/Edge 80+, Firefox 113+, Safari 16.4+

Frequently asked questions

How do I save a PNG in PDF format?

Drop the PNG onto this page, then press Convert to PDF. The browser builds the PDF locally and shows a download button within seconds. No software to install, no account to create, no file uploaded to a server.

Is PNG to PDF format conversion lossless?

With the default Lossless setting, yes. The PNG pixels are embedded in the PDF without re-encoding, so every colour value comes back identical. Switch to Compact only when file size matters more than pixel-perfect reproduction — it re-encodes as JPEG at quality 85.

Can I convert multiple PNGs into one PDF?

Yes. Add up to 50 PNG files, reorder them in the thumbnail strip, and press Convert. Each PNG becomes a page in a single PDF document. If you need separate PDFs instead, tick 'Separate PDFs' to get a .zip with one PDF per image.

Why convert PNG to PDF format?

PDF is the universal format for sharing documents that look the same everywhere. Converting a PNG to PDF locks in the layout, makes the file printable at the right size, and lets you combine several images into a single multi-page document — useful for reports, portfolios and form submissions.

Does it work with transparent PNGs?

Yes. Transparent areas are rendered onto a white background before entering the PDF, because PDF pages are opaque. The visual result matches what you see when printing the image: transparent regions appear white.

Is there a file-size limit?

Each PNG can be up to 50 MB, with up to 50 files per batch. Because conversion runs locally in your browser, there is no server-side upload limit. The only hard ceiling is your device's available memory.

Are my files uploaded anywhere?

No. The entire process runs inside your browser using Canvas 2D and Compression Streams. No file, filename or pixel leaves your device. You can verify this in the browser's network panel, or by going offline after the page loads — the converter keeps working.

What is the difference between PNG and PDF format?

PNG is a raster image format — a grid of pixels, ideal for screenshots and graphics with sharp edges. PDF is a document format that can hold text, vectors and images across multiple pages with a fixed layout. Converting PNG to PDF wraps the pixel data in a document container, making it printable and shareable as a formal file.

Why PNG to PDF format matters

PNG is perfect for storing screenshots, diagrams and graphics with crisp edges — but try emailing five PNGs to someone who needs to print them, and things get awkward fast. PDF solves that: it wraps every image in a fixed-layout container that previews, prints and archives the same way on every device.

This converter keeps the translation simple. Each PNG gets its own page, sized to match the image by default so there are no white borders. The pixel data is stored losslessly inside the PDF using the same deflate compression PNG uses, meaning the output file is roughly the same size as the inputs combined — no quality trade-off.

Need a different layout? Switch to A4 or US Letter pages and add margins for a print-ready result. Need a smaller file? Compact mode re-encodes as JPEG — useful for photographs, but not ideal for text-heavy screenshots where JPEG artefacts show. The tool runs the same PNG to PDF converter as the homepage, with the same 50-file, 50 MB-per-image limits and the same privacy guarantee: nothing leaves your browser.

Your files never leave your device

There is no upload. The PNG is decoded, drawn to a canvas and written into the PDF by JavaScript running in this tab. No pixel, filename or metadata is transmitted. You can confirm it: open the network panel in your browser's developer tools during a conversion, or disconnect from the internet after the page loads — the converter keeps working.