Why convert PNG to PDF?
- Universally accepted. Job portals, government forms, and document-management systems often demand PDF; a raw PNG bounces.
- Locks the image into a layout. A PDF embeds the image with a fixed page size, so it prints predictably and looks the same on every device.
- Better for sharing. Email clients and document viewers preview PDFs cleanly; PNGs sometimes get downsampled or inlined awkwardly.
What you get
One PNG becomes one single-page PDF. The PDF page is sized to fit the image at 100 DPI — a 1000 × 1000 pixel PNG becomes a 10 × 10 inch page. The image fills the page edge-to-edge, no cropping, no letterboxing. The pixel data is wrapped into the PDF directly, so visible quality matches the source.
Transparency note: PDFs can't carry per-pixel alpha at the image level for this code path, so any transparent areas in the PNG are flattened onto a white background. A transparent logo becomes a logo on white inside the PDF. If you need transparency preserved, keep the PNG; if you need a non-white background, edit the PNG first.
Batch-uploading several PNGs returns the same number of single-page PDFs. Combining multiple images into one multi-page PDF isn't supported yet — tell us if that'd help.
How it works
- Open the converter. Go to the Formatly converter — no signup required.
- Drop your PNG files. Drag and drop one or more PNGs into the upload box (up to five at once, 20 MB each).
- Choose PDF as the output. Each PNG becomes its own single-page PDF; transparent areas are flattened to white.
- Convert and download. Click Convert; a download link appears for each PDF as it finishes.
Good for
- Uploading a screenshot to a portal that only accepts PDF.
- Wrapping a PNG receipt, mockup, or diagram into a PDF for an expense report or design review.
- Preparing PNG graphics for printing on a printer that handles PDF more reliably than raw images.
- Standardizing a folder of design exports as PDFs for archival.
FAQ
What happens to transparent areas in my PNG? Transparent areas get flattened onto a white background — PDF doesn't carry per-pixel alpha at the image level the way PNG does. So a transparent logo becomes a logo on white inside the PDF. If you need transparency preserved, keep the PNG; if you need a different background color, edit the PNG first (in Preview, Photoshop, or any image editor) before converting.
What page size does the PDF use? The PDF page is sized to fit the image: at 100 DPI, a 1000 × 1000 pixel PNG becomes a 10 × 10 inch page. That means the image fills the page edge-to-edge with no cropping or letterboxing. The on-screen rendering scales like any other PDF — only the underlying page dimensions reflect the source image size.
Can I combine multiple PNGs into one PDF? Not yet — for now each PNG becomes its own single-page PDF. If you batch-upload 3 PNGs you get 3 separate PDFs. Combining multiple images into a single multi-page PDF is a planned feature; let us know on /contact if you'd find it useful.
How many PNG files can I convert at once? Up to five files per upload, with a 20 MB ceiling on each. Each PNG becomes its own PDF; you'll get five download links back. No daily limit on number of batches.
Is the PNG to PDF converter free? Yes. No signup, no watermark, no payment. Free for personal and commercial use. Files are auto-deleted within one hour.
Related
- JPG → PDF → same trip, for JPGs
- PDF → PNG → the reverse trip
- PNG → JPG → for a smaller, lossy image first
- HEIC → PDF → for iPhone photos straight to PDF
- PNG vs JPG vs WebP: which to choose →
- All supported formats →