PNG to PDF - Combine Multiple Images

Convert PNG images to PDF online

or Drag & drop files here

Max 100 filesMax file size: 100MB

Supported formats: image/png, .png

PNG to PDF Converter That Actually Keeps Transparency

Most PNG to PDF tools flatten your transparent backgrounds. Ours doesn't. Upload a logo with no background, get a PDF with no background. Simple as that. The converter runs entirely in your browser using WebAssembly—your files stay on your device, not our servers.

Tested with 2,847 PNG files during development. Zero transparency issues.

Step-by-Step Guide

Turn Your PNGs into PDFs

1

Drop your PNG files onto the page (or click to browse)

2

Drag to reorder if you're making a multi-page PDF

3

Toggle transparency settings if you need a solid background

4

Hit Create PDF and wait a few seconds

5

Download your finished PDF

Why PDFyogi

Why This Converter Instead of Preview or Photos App

Transparency That Works

Your transparent PNGs stay transparent in the PDF. Logos, icons, graphics—all preserved exactly how you made them.

Batch Processing

Convert 50 PNGs into one PDF in about 8 seconds. Try doing that with Preview.

Reorder Before Converting

Drag thumbnails around to arrange pages. Way faster than renaming files to get alphabetical order.

Custom Page Sizes

Auto-fit to image dimensions, or force A4, Letter, A3. Your choice per conversion.

No Account Needed

No signup, no email verification, no "free trial" nonsense. Just works.

Actually Private

Files never leave your browser. We can't see them even if we wanted to.

Platform Guides

Works on Everything

Windows

Chrome, Edge, and Firefox all work. Edge actually performs slightly better on Windows 11.

  • Open pdfyogi.com/png-to-pdf in any modern browser
  • Drag PNGs from File Explorer directly onto the page
  • Configure settings and create your PDF
  • Find the download in your Downloads folder

Mac

Safari, Chrome, Firefox—all fine. Safari actually handles large batches really well.

  • Visit the converter in Safari or Chrome
  • Drag files from Finder (multi-select with Cmd+click)
  • Adjust transparency and page settings
  • Download appears in Finder's Downloads folder

Linux

Firefox and Chrome both work. Tested on Ubuntu 22.04 and Fedora 38.

  • Open Firefox or Chrome
  • Navigate to the PNG to PDF converter
  • Upload files and configure options
  • Download saves to your default location

iPhone & iPad

Safari works great. Add to Home Screen for app-like experience.

  • Tap the upload area in Safari
  • Select 'Photo Library' or 'Browse' for Files
  • Choose your PNGs (long-press for multi-select in Photos)
  • Tap Create PDF, then share or save

Android

Chrome performs best. Samsung Internet also works fine.

  • Open Chrome and go to the converter
  • Tap upload and select from Gallery or Files
  • Configure your PDF settings
  • Download saves to your Downloads folder
Comparison

How We Compare

FeaturePDFyogiPreview (Mac)Adobe AcrobatiLovePDF
Keeps PNG transparency✓ Yes○ Sometimes loses it✓ Yes○ Partial
Batch conversion✓ Up to 100 files✗ One at a time✓ Yes✓ Limited free
No file upload to server✓ 100% local✓ Local✗ Cloud upload✗ Server upload
Free to use✓ Completely✓ Built-in✗ $15/month○ Limits apply
Custom page sizes✓ A3, A4, A5, Letter, Auto○ Limited options✓ Full control✓ Standard sizes
Drag-to-reorder pages✓ Drag thumbnails✗ Manual file naming✓ Yes✓ Yes
No signup required✓ No account✓ N/A✗ Adobe account○ For full features
Works on mobile✓ Full support✗ Mac only✓ With app✓ Yes
Pro Tips

Tips from Actual Use

Name Files Before Upload

Files sort alphabetically by default. Name them 01-intro.png, 02-chapter1.png, etc., and they'll line up correctly.

Use Auto Page Size for Screenshots

The Auto setting fits the PDF page exactly to your image dimensions. Perfect for screenshots you don't want cropped.

White Background for Printing

Transparent PNGs look weird when printed on some printers. Toggle off transparency and set white background if you're going to print.

High Quality Adds File Size

A 2MB PNG at High quality becomes roughly 1.8MB in the PDF. Medium drops it to about 900KB with minimal visible difference.

Safari Handles Large Batches Well

If you're converting 80+ images on Mac, Safari actually manages memory better than Chrome.

Check Orientation Before Converting

Mixed portrait and landscape? Set orientation to Auto. It'll detect and rotate each page appropriately.

Rotate Individual Images

Click the rotate button on any thumbnail to fix sideways photos before converting.

Technical Details

Technical Details

Max file size100MB per PNG
Batch limit100 images per conversion
Supported inputPNG (8-bit, 24-bit, 32-bit with alpha)
Output formatPDF 1.4 compatible
ProcessingClient-side WebAssembly
Color spaceRGB preserved, CMYK converted
TransparencyAlpha channel preserved or flattened
Page sizesA3, A4, A5, Letter, or auto-fit
Quality levelsLow (72 DPI), Medium (150 DPI), High (300 DPI)
Browser supportChrome 90+, Firefox 90+, Safari 15+, Edge 90+
FAQ

Questions People Actually Ask

Yes, by default. The alpha channel transfers directly to the PDF. You'll only lose transparency if you explicitly turn it off in settings.

Troubleshooting

Common Issues

PNG to PDF Converter - Combine Images to PDF (No Upload)