PNG to PDF Converter
Combine PNGs into one PDF without blurring them: screenshots, diagrams and scans are embedded losslessly, in the order you choose, on A4, Letter or image-sized pages.
PNG to PDF Converter
🔒 Your PDF is processed entirely in this browser tab (pdf-lib + Mozilla pdf.js) — it is never uploaded, so confidential documents stay on your device.
- PNGLossless (Deflate) · 1–16 bits per channel, palette or true colour · alpha: Full 8-bit alpha
- PDFImages as JPEG (DCT) or lossless Flate · Any (per embedded image) · alpha: Soft masks
- TipMixed photos and screenshots? Leave quality on Auto: graphics are embedded losslessly and photos as JPEG to keep the PDF small.
- PrivacyFiles never leave your device; re-encoding drops EXIF/GPS metadata.
Format facts checked October 2026.
Runs in your browser — nothing you enter is uploaded or stored.
Scratchpad auto-saved
How it works — in four simple steps
No signup and nothing to install — it all runs in your browser.
Add your PNG files
Drop them on the box or click to choose.
Arrange the pages
Drag to reorder, or remove pages you don't need.
Pick page size and quality
A4, Letter or fit-to-image; Auto keeps graphics lossless and compresses photos.
Create the PDF
Press Create PDF and download it — assembled entirely in your browser.
Mixed photos and screenshots? Leave quality on Auto: graphics are embedded losslessly and photos as JPEG to keep the PDF small.
Features
One PDF from many images
Drag to reorder, A4/Letter/fit-to-image pages, margins, lossless or JPEG embedding.
Nothing uploaded
Decoding and encoding run in your browser tab; the files never leave your device.
About the PNG to PDF Converter
PNGs are usually screenshots, diagrams, charts or scanned pages with text — exactly the images that JPEG compression smudges. Embedding them losslessly keeps every edge sharp in the PDF, which is what you want for submissions, reports and receipts.
The PNG is decoded by your browser, alpha included.
The PDF is assembled in your browser with pdf-lib. On Auto, each page is checked: graphics, screenshots and scans with few colours are embedded losslessly (Flate), photographs as JPEG — so text stays sharp without bloating the file.
PNG vs PDF compared
| Property | PNG | |
|---|---|---|
| Origin / standard | W3C 1996 · ISO/IEC 15948 | Adobe, 1993 · ISO 32000-2 (PDF 2.0, 2020) |
| Compression | Lossless (Deflate) | Images as JPEG (DCT) or lossless Flate |
| Transparency | Full 8-bit alpha | Soft masks |
| Colour depth | 1–16 bits per channel, palette or true colour | Any (per embedded image) |
| Animation / pages | APNG extension | Multi-page |
| Maximum size | 2³¹ − 1 px (practically memory-bound) | 14,400 × 14,400 pt page (PDF 1.x guidance) |
| Typical use | Screenshots, UI, logos, web graphics | Documents, printing, sharing |
| Opens in | Everything | Everything |
Measured on our sample
What this page produced from its built-in sample (a 960 × 640 PNG), with each preset:
| Setting | Input | Output | Notes |
|---|---|---|---|
| Default (A4, Auto quality) | 557.0 KB · 1 page(s) | 197.2 KB | 1 page · 1 lossless |
Measured with this page’s converter in Chromium (October 2026). Press the sample preset above to reproduce; your own images will differ with their content.
Things to know
- Transparency on white. Transparent PNG areas are placed on the white page.
- Lossless can be big. Large photographic PNGs embedded losslessly make large PDFs; choose a JPEG quality to shrink them.