How to Convert PNG to PDF (Including Transparent PNGs, Free 2026)
How to Convert PNG to PDF (Including Transparent PNGs, Free 2026)
PNG is great for screenshots, logos, and graphics with sharp edges, but PDF is the format people expect for documents you share, print, or attach. Converting a PNG (or several) to a single PDF makes it easy to send and keeps the images together in order. PDF Zone's Images to PDF tool does it entirely in your browser, so your images are never uploaded.
Here's how to convert one PNG or combine many into a single PDF, plus how to handle transparent backgrounds.
How to Convert PNG to PDF (3 Steps)
Step 1: Open the Images to PDF Tool
Go to the Images to PDF tool. No signup, no install.
Step 2: Add Your PNG Files
Drag in one PNG or several at once. The files stay on your device, nothing is uploaded.
Step 3: Arrange and Download
Reorder the images into the sequence you want, then click Convert and download your PDF. Multiple PNGs become one multi-page PDF, one image per page.
Combine Multiple PNGs Into One PDF
This is the most common reason to convert: turning a set of screenshots or scanned pages into a single, tidy document.
- Add all your PNGs to the Images to PDF tool at once.
- Drag them into the correct order, this becomes the page order.
- Convert and download a single PDF containing every image.
To join it with other PDFs afterward, use the Merge PDF tool.
Handling Transparent PNG Backgrounds
PNGs can have transparent backgrounds, which PDF pages can't display as "see-through." When you convert, transparent areas are placed on a white page background, so a logo with a transparent edge simply sits on white. That's exactly what you want for most documents.
If you specifically need the graphic to sit on a colored or custom background, place the PNG onto that background first (in any image editor), export it as a flat PNG, then convert to PDF.
PNG vs. JPG for PDF Conversion
- PNG keeps text and line art razor-sharp with no compression artifacts, ideal for screenshots, diagrams, and logos.
- JPG produces smaller files for photographs. If your images are photos rather than graphics, converting from JPG keeps the PDF lighter.
Either works in the same tool. For the photo direction and the reverse (PDF back to images), see How to Convert Images to PDF and PDF to Images and How to Convert PDF to JPG.
Keep the File Size Down
A PDF made from several high-resolution PNGs can get large. If you need to email or upload it, run it through the Compress PDF tool, or see How to Compress a PDF to a Specific Size.
After Converting
- Combine with other PDFs: Merge PDF.
- Add page numbers: Page Numbers.
- Shrink for email: Compress PDF.
Frequently Asked Questions
How do I convert a PNG to PDF for free?
Open PDF Zone's Images to PDF tool, drag in your PNG, and click Convert. It's free, runs in your browser, and needs no signup.
How do I combine multiple PNG files into one PDF?
Add all your PNGs to the Images to PDF tool at once, drag them into the order you want, and convert. You'll get a single PDF with one image per page.
What happens to a transparent PNG background when I convert it?
Transparent areas are placed on a white page background, since PDF pages aren't see-through. A logo with transparency will sit cleanly on white, which suits most documents.
Does converting PNG to PDF reduce image quality?
No, the conversion preserves your PNG's resolution and sharpness. The PDF may be large if the PNGs are high-resolution; compress it afterward if you need a smaller file.
Can I convert PNG to PDF on my phone?
Yes. Open the Images to PDF tool in your mobile browser, add your PNGs, and download the PDF, no app needed.
Should I use PNG or JPG for a PDF?
Use PNG for screenshots, diagrams, and logos where sharp edges matter. Use JPG for photographs to keep the file smaller. Both convert in the same tool.
Is it safe to convert PNG to PDF online?
With PDF Zone, yes. The Images to PDF tool processes your files locally in your browser and never uploads them.
How do I convert a PDF back to PNG?
Use the PDF to Images tool and choose PNG, each page becomes a separate PNG image. See How to Convert PDF to JPG for the full guide.
Related: Images to PDF · Convert PDF to JPG · Compress to a Specific Size
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Convert PNG images to PDF for free in your browser, no uploads. Combine multiple PNGs into one PDF and handle transparent backgrounds cleanly. Any device.
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