Free PNG to PDF converter

Convert PNG to PDF in your browser

Drop one PNG or fifty, press Convert, and download a PDF — no signup, no watermark, no upload. The file never leaves your device: JavaScript in this tab reads the pixels, builds the pages and hands you the finished document.

Need photographs on A4 pages instead? The JPG to PDF converter starts with the right defaults for that.

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. Change any setting in the controls above.

How to convert PNG to PDF

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

Drop your PNG files
Drag one or more PNG files onto the drop zone above, or click it to open a file picker. You can add up to 50 images at once, each up to 50 MB. Screenshots, logos, scans and transparent graphics all work.
Reorder the pages
The thumbnails show the page order: file 1 becomes page 1. Drag them into the order you want, or use Sort A→Z to line up numbered filenames naturally (IMG_2 before IMG_10). Rotate any image that came in sideways.
Choose page size and quality
Fit to image keeps each page exactly as large as the PNG — no white borders. Switch to A4 or US Letter if you need a printable layout. Lossless mode preserves every pixel; Compact re-encodes as JPEG if you need a smaller file.
Convert and download the PDF
Press Convert to PDF. The file is built by JavaScript in this tab — nothing is uploaded. A download button appears showing 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 convert a PNG to PDF?

Drop the PNG file onto the area at the top of this page, then press Convert to PDF. The download button appears in a few seconds. No installation, no signup, no upload — the PDF is assembled by JavaScript running in your browser tab.

Can I convert multiple PNG files to one PDF?

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

Does converting PNG to PDF lose quality?

Not with the default Lossless setting. The PNG pixels are embedded without re-encoding, so no data is lost and every colour value comes back identical. Switch to Compact only if file size matters more than pixel-perfect reproduction — it re-encodes as JPEG at quality 85.

Is there a file-size limit?

Each PNG can be up to 50 MB, and you can add up to 50 files per batch. Because the 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 conversion happens inside your browser using Canvas 2D and Compression Streams. No file, filename or pixel is sent over the network. You can verify this by opening the browser's network panel, or by disconnecting from the internet after the page loads — the converter keeps working.

Can I convert a PNG with a transparent background?

Yes. The converter preserves transparency in the sense that the PNG is rendered onto a white canvas before it enters the PDF — PDF pages have a white background by default. The visual result is the same as printing the image: transparent areas appear white.

What is the difference between this page and the PNG to PDF homepage?

They run the same converter. This page targets the 'convert PNG to PDF' search phrase specifically and uses identical defaults: fit-to-image pages with lossless quality, which is what screenshots and line art need. If you arrived here from a search, you are in the right place.

Does it work on iPhone and Android?

Yes. Open this page in Safari (iPhone) or Chrome (Android), tap the drop area and pick files from your photo library or file manager. The converter runs the same way as on desktop — nothing is installed and nothing is uploaded.

Same converter, different search

If you searched for “convert PNG to PDF” you landed here. This page runs the same client-side converter as the PNG to PDF homepage, with the same defaults: fit-to-image pages, no margin and lossless quality — the setup that gives you a PDF where every pixel matches the source file.

Lossless matters for PNG because PNG content is usually a screenshot, a diagram, a logo or a scan with sharp edges and solid colours. Re-encoding that as JPEG would blur the edges and add artefacts around text. The default quality setting avoids that entirely: the decoded RGBA samples are packed with deflate, identical to what PNG itself uses.

The practical limits: 50 images and 50 MB each per run, 16 megapixels per image before the browser's canvas ceiling kicks in, and no OCR — pages are pictures, not searchable text. Beyond those numbers, every feature of the converter is available: page reordering, rotation, A4 or Letter layouts, and compact JPEG output if you want smaller files at the cost of exact reproduction.

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.