What PNG to PDF does
PDFGrover's PNG to PDF tool combines one or more PNG images into a single PDF — one image per page. Unlike a generic image converter, it's tuned for PNGs: the alpha channel is preserved end to end, so logos, icons, and design assets with transparent backgrounds land in the PDF without a forced white box behind them.
When to convert PNG to PDF
- Screenshots — turn a sequence of captures into one shareable, printable document.
- Logos & brand assets — package transparent-background graphics as a PDF without losing the transparency.
- Design mockups & wireframes — send UI screens as a single reviewable file.
- Diagrams & charts — keep crisp, lossless lines (PNG) rather than the soft edges JPG would introduce.
- Submitting where only PDF is accepted — when a portal rejects
loose
.pngfiles.
How to convert PNG to PDF
- Upload your PNGs — drag them in or click to browse. They appear in the PDF in upload order.
- Set page size, orientation, and margins (see below).
- Click Create PDF and download the document.
Page size, orientation and margins
- Page size — Fit to Image (default — page matches the pixel dimensions), A4 (210 × 297 mm), Letter (8.5 × 11 in), or Legal (8.5 × 14 in).
- Orientation — Auto-detect (Portrait/Landscape from aspect ratio), or force Portrait / Landscape.
- Margins — None, 10 mm, 20 mm, or 30 mm, applied on all four sides when the page size isn't Fit-to-Image.
Transparency, kept intact
Each PNG is embedded with its alpha channel preserved, and PDF supports page-level transparency — so a logo with a transparent background stays transparent in the output instead of being boxed in white the way many competing converters render it. (The handful of older PDF viewers that don't render transparency will fall back to white behind the image.)
Image order
Images land in the PDF in the order you upload them — there's no post-upload reorder step here. To control the sequence, upload the files in that order, or build parts and reorder them with Merge PDF, which does let you reorder before merging.
Limits
- Up to 100 MB per PNG
- Up to 100 MB total per conversion
- No hard file-count cap, though browser memory tightens past a few hundred images in one go
Where it runs — and your privacy
Small batches convert entirely in your browser (nothing uploaded) when you're converting 10 PNGs or fewer with a total size of 30 MB or less. Larger batches use our secure server (the same path as JPG to PDF). Server uploads go over HTTPS, the PDF is built, and the source images are deleted as soon as your download is ready. Close the tab mid-conversion and the job is cancelled and temporary files cleared automatically. No sign-up, no watermark, no copies kept.
PNG or JPG to PDF?
Use PNG to PDF for screenshots, logos, line art, and anything where
transparency or pixel-perfect edges matter. For photographs, prefer
JPG to PDF — far smaller files for the same visual
result. Mixed .jpg + .png set? JPG to PDF accepts
both.
Tips & troubleshooting
- Result is large? Screenshot PDFs add up — run it through Compress PDF before emailing.
- Pages out of order — re-upload in order, or reorder via Merge PDF.
- Transparency turned white — that's an old viewer, not the file; the PNG's alpha is preserved in the PDF itself.
- Upload rejected — confirm each PNG is under 100 MB and the batch total is within 100 MB.