Is the PNG to PDF converter free?

Yes — completely free with no image limits, no watermarks, and no account required.

Is my PNG file secure?

All conversion happens in your browser. Your PNG images are never sent to any server — they stay on your device the entire time.

Does PNG transparency carry over into the PDF?

Yes. AstraPDF uses pdf-lib to embed the PNG directly, which preserves the alpha channel. Transparent areas in your PNG will remain transparent in the PDF.

Can I convert multiple PNG images into one PDF?

Yes. You can upload up to 50 PNG images. Each image becomes a separate page in the PDF, in the order shown in the list.

Which page size should I choose?

Use "Fit to Image" to keep each page the same pixel size as the original PNG — best for digital viewing. Choose A4 or Letter if you plan to print the PDF on standard paper.

Can I add JPG or WebP images alongside PNG?

This tool accepts PNG files only. To convert JPG images to PDF use the JPG to PDF tool, and for WebP images use the WebP to PDF tool on AstraPDF.

Why is the output PDF larger than my PNG files?

PNG uses lossless compression that PDF stores differently. The embedded PNG data inside the PDF may occupy more space. You can reduce the file size with the AstraPDF Compress PDF tool after conversion.

Is PNG to PDF free to use?

Yes. PNG to PDF is free in your browser with no sign-up. Free plan supports files up to 50 MB with fair-use limits. AstraPDF Plus removes caps and ads.

Can I use this on mobile?

Yes. Open the tool in Safari, Chrome, or Firefox on any smartphone or tablet — no app required.

Do I need a paid account?

No. PNG to PDF works on the free plan. Plus is optional for unlimited processing and larger files.

PNG to PDF Converter — Free Online, Transparency Preserved

Choose PNG Images

or drop .png files here

Select Files

PNG only · Up to 50 images

Free · Unlimited · Transparency preserved · All processing in your browser

Lossless image quality

PNG graphics embedded at full resolution in your PDF.

Batch conversion

Combine multiple PNGs into one multi-page PDF.

Secure — files never uploaded

Your files are processed locally in your browser — nothing is uploaded to our servers.

How to convert PNG to PDF online

Create a PDF from PNG images in four steps.

1
Upload PNG files
Select images to include.
2
Order pages
Arrange images in the desired sequence.
3
Convert
Build the PDF locally in your browser.
4
Download
Save your PDF.

Everything you need for PNG to PDF

Image-to-PDF conversion with complete privacy.

Start immediately — no fuss

Use PNG to PDF directly in your browser. No sign-up, no software install.

Works on any device

Desktop, tablet, or phone on Windows, Mac, Linux, iOS, and Android.

No watermarks on output

Download clean results on Free and Plus — no branding stamped on your files.

100% browser-based privacy

Your files are processed locally in your browser — nothing is uploaded to our servers.

Combine with other PDF tools

Chain tools together — merge, compress, convert, protect, and sign in one workflow.

Optional Premium upgrade

AstraPDF Plus removes file-size caps, fair-use limits, and ads — still 100% private in your browser.

When to convert PNG to PDF

Design exports

Bundle UI screens or diagrams.

Screenshots

Submit screenshot evidence as one PDF.

JPG photos

Convert camera photos.

Merge with PDFs

Combine with existing documents.

PNG to PDF FAQs

Common questions about png to pdf with AstraPDF.

Need more power?

Convert unlimited PNGs to PDF

AstraPDF Plus removes file-size caps, fair-use limits, and ads — still 100% private in your browser.

Get Premium

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Need more power? See our pricing plans or browse all tools on the homepage.