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Convert PNG images, screenshots, and graphics into PDF documents. Ideal for submitting forms, creating presentations, or archiving visual content as documents.

By ChangeThisFile Team · Last updated: March 2026

Quick Answer

To convert PNG to PDF, drop your PNG file into the converter. ChangeThisFile generates a PDF document containing your image at full resolution using client-side JavaScript. Transparency from the PNG is rendered on a white background in the PDF. No files are uploaded - everything happens on your device.

First daily conversion free No signup required Files stay on your device Instant conversion Updated May 2026

PNG vs PDF: Format Comparison

Key differences between the two formats

Feature	PNG	PDF
Type	Raster image	Document format
Transparency	Yes (alpha)	White background fill
Pages	Single image	Multi-page support
Quality	Lossless pixels	Embedded image quality
Annotations	No	Comments, forms, stamps
Universal viewing	Image viewers/browsers	PDF readers
Best for	Screenshots, graphics	Documents, sharing, archiving

When to Convert

Common scenarios where this conversion is useful

Submitting screenshots as documentation

Convert screenshots into PDF for bug reports, support tickets, or compliance documentation. PDFs are the standard format for formal document submissions.

Creating printable graphics

When you need to print a PNG graphic, converting to PDF gives you precise control over print sizing and ensures the image prints correctly on standard paper sizes.

Packaging diagrams for sharing

Technical diagrams, flowcharts, and infographics saved as PNG convert well to PDF for professional distribution. PDFs maintain layout integrity across different devices.

Digital signature workflows

Many e-signature platforms require PDF input. Convert your PNG documents, scans, or forms to PDF before uploading them for digital signature collection.

Who Uses This Conversion

Tailored guidance for different workflows

Office Workers

Convert PNG documents to PDF for sharing with colleagues who use different software
Transform PNG reports to PDF for archiving or distribution to external stakeholders

Review the converted PDF for formatting changes, especially tables, headers, and page breaks

Convert to PDF as the final step after all edits are complete to avoid formatting drift

Students

Convert PNG lecture notes to PDF for submitting assignments in the required format
Transform PNG study materials to PDF for reading on tablets or e-readers

Double-check that fonts and special characters render correctly in the converted PDF file

Save a backup of your PNG original before converting, in case you need to make edits later

Professionals

Convert PNG contracts or proposals to PDF for secure, read-only distribution to clients
Transform PNG templates to PDF for use across different office suites and platforms

Verify that hyperlinks and cross-references still work after converting PNG to PDF

For legally sensitive documents, confirm the PDF output matches the PNG layout exactly

How to Convert PNG to PDF

1

Add your PNG image

Drag and drop your PNG file into the converter, or click browse to select it from your device.
2

PDF created in your browser

A PDF document is generated with your PNG image embedded at full resolution. Transparent areas are rendered on white.
3

Download the PDF

Save the PDF file. Open it in any PDF reader, email it, or upload it wherever PDFs are accepted.

Developers: convert via API →

Frequently Asked Questions

What happens to PNG transparency in the PDF?

Transparent areas in your PNG are rendered on a white background in the PDF. PDF does support transparency in some contexts, but for maximum compatibility the converter uses a white background.

What dimensions will the PDF page be?

The PDF page sizes automatically to fit your PNG image while maintaining its aspect ratio. Large images are fitted within standard page dimensions.

Is the image quality preserved?

Yes. The PNG image is embedded in the PDF at its original resolution. No re-compression or quality loss occurs during the conversion.

Can I combine multiple PNGs into one PDF?

Currently each PNG converts to a separate PDF. Multi-page PDF creation from multiple images is planned for a future update.

Will text in my PNG be searchable in the PDF?

No. The PNG is embedded as an image, so any text is part of the pixel data and not searchable. You would need OCR software to extract searchable text.

Can I convert screenshots from my phone?

Yes. Phone screenshots are typically saved as PNG. Open this page on your mobile browser and convert screenshots directly to PDF without any app.

Is this free for commercial use?

Yes. ChangeThisFile is completely free with no usage restrictions. Convert as many files as you need for personal or commercial purposes.

What PDF version is generated?

The converter generates PDF 1.4 compatible files, which are supported by all modern PDF readers and meet most archival and submission requirements.

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Need to convert programmatically?

Use the ChangeThisFile API to convert PNG to PDF in your app or script. Free tier included.

View API & Pricing

Read our guides on file formats and conversion

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