PNG to PDF Converter
Convert PNG images to PDF with transparency support. Batch convert and merge into one PDF.
Drop image files here
or
Supported formats: JPEG, PNG, WebP, GIF, BMP, HEIC — multiple files supported
What Is PNG to PDF Conversion?
PNG to PDF conversion is an online tool that converts PNG image files into PDF format. It's useful for saving PNG images with transparent backgrounds as PDFs, or combining multiple PNGs into a single PDF document.
sakutto.ai's PNG to PDF converter processes everything in your browser — your image data is never sent to any server. Safely convert confidential files like design mockups and scanned images.
Supports batch conversion, page reordering, and paper size selection. Great for creating PDFs from design comps, consolidating scanned documents, and building portfolios. Free, no sign-up required.
How to Use the PNG to PDF Converter
- Drag and drop PNG images or use the file picker to upload them
- Reorder images with the arrow buttons if needed
- Set the page size, orientation, and margins
- Click the "Convert to PDF" button
- Click "Download PDF" to save the finished file
Features of sakutto's PNG to PDF Converter
- Runs entirely in your browser — your images are never sent to any server
- Supports transparent PNGs (with alpha channel)
- Also accepts JPEG, WebP, GIF, and BMP — mix and match in one PDF
- Drag-and-drop reordering to arrange pages however you like
- Choose from Fit to Image, A4, or Letter page sizes
- Adjustable margins: none, small, or medium
- Combine multiple PNG images into a single multi-page PDF
- Free to use, no sign-up required
Use Cases for PNG to PDF Conversion
Archiving screenshots as PDFs
Combine screenshots of web pages or apps into a single PDF for reports, manuals, or documentation.
Converting logos and illustrations
Turn transparent PNG logos or illustrations into PDFs for print-ready files or presentation materials.
Delivering design files
Bundle multiple PNG design comps into one PDF for easy client delivery.
Why PNG to PDF Converter on sakutto is safe
Many online tools upload your files to external servers for processing. This tool never sends your PNG image files to any server — everything is processed entirely in your browser.
* Some AI-powered tools require server-side processing. Tools that send data to a server will always notify you beforehand.
| Comparison | Typical online tools | sakutto |
|---|---|---|
| Where data is sent | Uploaded to external servers | Nowhere — processed in your browser |
| Data leak risk | Risk during transfer and server storage | No risk — no network transfer occurs |
| External traffic | File data travels over the internet | No file data appears in network logs |
| Offline use | Not possible (server required) | Works offline after initial load |
How browser-based processing works
- WebAssembly (WASM): Processes PNG image files in your browser at near-native speed. No server communication occurs.
- Web Workers: Runs on a background thread separate from the main thread, so your browser stays responsive during processing.
- After processing, your browser automatically frees the data from memory. No PNG image files remains outside your device.
For IT security teams: How to verify
You can verify that sakutto never sends your PNG image files externally by checking the Network tab in your browser's DevTools while using the tool. You'll see that no requests involving your PNG image files are made. This can also serve as documentation for your IT security team.
Frequently Asked Questions
What happens to transparent PNGs when converting to PDF?
Transparent areas are rendered with a white background in the PDF. The resolution and quality of the original PNG are fully preserved.
Is my file sent to a server?
No. All processing happens entirely in your browser. Your images are never uploaded to any external server, so you can safely use this tool with private photos.
Can I convert image formats other than PNG?
Yes. JPEG, WebP, GIF, and BMP are also supported. You can even mix different formats and combine them into a single PDF.
How many images can I convert at once?
The free tier supports up to 5 images at a time, with a maximum of 10 MB per file.
Should I use PNG or JPG for PDF conversion?
It depends on your needs. PNG uses lossless compression and supports transparency, making it ideal for screenshots, logos, and graphics where sharpness matters. JPG is better for photographs or when smaller file size is a priority.
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