Convert PNG to PDF — Free, Private, No Upload
Convert PNG screenshots, diagrams, logos, and graphics to PDF in your browser. Transparent areas are composited onto a white background for reliable viewing in every PDF reader. No uploads, no signup, and no watermark — up to 25 images per conversion.
How to Convert PNG to PDF
- 1
Select PNG files
Drop screenshots or graphics into the converter, or paste from clipboard.
- 2
Arrange and set layout
Reorder pages, rotate if needed, and choose page size, margins, and orientation.
- 3
Download your PDF
Transparent areas render as white. The PDF is created locally and downloads instantly.
PNG Transparency Handling
PNG images often include transparent backgrounds. Local2PDF automatically renders transparent areas as white in the output PDF so pages look consistent in Preview, Chrome, Adobe Reader, and mobile apps. The Balanced quality preset keeps text in screenshots readable while controlling file size.
When to Use PNG vs JPEG for PDF
PNG is ideal for screenshots, diagrams, logos, UI captures, and images with text or sharp edges. JPEG is better for photographs. Local2PDF accepts both formats in the same workflow through the shared Image to PDF converter.
When to Use PNG to PDF
Documentation packs
Compile sharp UI screenshots into one PDF for manuals, onboarding guides, or release notes.
Bug reports
Attach a single PDF of ordered screenshots instead of many loose PNG files in a ticket.
Diagrams and logos
Preserve crisp edges from charts, icons, and brand assets in a universally viewable PDF.
Print handouts
Place PNG slides or posters onto A4/Letter pages with margins ready for printing.
Limitations
- Transparency becomes white. PDF pages do not keep alpha channels; clear pixels are filled with white.
- 25 images per job. Split larger sets into multiple conversions.
- Huge canvases may strain memory. Very large PNGs can slow older phones and laptops.
Frequently asked questions
Are my PNG files uploaded?
No. PNG to PDF conversion runs entirely in your browser on your device.
Will transparent PNGs look correct in the PDF?
Transparent areas are filled with white so the PDF displays reliably in all common readers.
Is this better than JPG for screenshots?
Usually yes. PNG keeps sharp text and UI edges better than JPEG compression for screenshots and diagrams.
Is PNG to PDF free?
Yes. Free, no signup, no watermark, unlimited conversions within the 25-image limit.
Private by design
Screenshots and product UI can be sensitive. Local2PDF processes PNG files locally so nothing is sent to our servers. See Security for how browser-local processing works.
Related tools
Image to PDF | JPG to PDF | WebP to PDF | Screenshot to PDF | Combine Images to PDF