PNG to PDF Converter
Convert PNG images to PDF online — combine multiple PNGs into one PDF, reorder pages, choose A4, Letter or auto size and margins. Free and private.
About the PNG to PDF Converter
This free PNG to PDF converter combines one or many PNG images into a single PDF document, entirely in your browser. Drop in your screenshots, scans, artwork or receipts, drag them into the right order, choose a page size — Auto to match each image, A4 portrait or landscape, or US Letter — pick a margin, and download the finished PDF. JPG images are accepted too, so you can mix both in one document.
Each image becomes one page, scaled to fit while keeping its exact proportions. PNG is embedded losslessly, so text in screenshots stays razor sharp. Because PDF pages have no transparency, any transparent areas in your PNGs are placed on a clean white background — the tool notes this so there are no surprises with logos or cut-out images.
Nothing is uploaded: conversion runs locally with client-side PDF generation, making it safe for ID scans, invoices and private screenshots. No signup, no watermark, no file limit.
How to Use the PNG to PDF Converter
- 1Drop your PNG images onto the tool (JPGs work too) — add as many as you like.
- 2Reorder them with the up/down arrows; each image becomes one PDF page.
- 3Choose a page size (Auto, A4 or Letter) and a margin.
- 4Click Convert and download your combined PDF.
Frequently Asked Questions
How do I combine multiple PNG files into one PDF?
Select or drag in all your PNGs at once, arrange them with the arrow buttons, and click Convert. Every image becomes one page of a single PDF, in the order shown. You can keep adding images before converting, and remove any you do not want.
What happens to transparent areas in my PNG?
PDF pages do not support transparency the way PNGs do, so transparent regions are rendered over a white page background. A logo with a transparent backdrop will appear on white in the PDF. If you need a different background colour, flatten the PNG in an image editor first.
Does converting PNG to PDF lose image quality?
No. PNG data is embedded into the PDF losslessly — pixels are not recompressed or resampled, only scaled to fit the page while preserving aspect ratio. Screenshots and line art stay perfectly sharp. Choosing Auto page size keeps each page exactly matched to its image dimensions.
Should I choose Auto, A4 or Letter page size?
Auto sizes each page to its image and is best for screenshots and images of varying shapes. A4 or Letter give you uniform printable pages — images are centred and scaled to fit, which is what you want when the PDF will be printed or attached to formal documents. Add a small margin for a cleaner printed look.
Are my images uploaded to a server?
No. The PDF is assembled in your browser using the pdf-lib library — your images never leave your device. That makes this converter safe for identity documents, medical records and anything else private.