Convert PNG to PDF Online
Screenshots and graphics into a clean PDF — losslessly, with transparency preserved.
100% in your browser — files never uploaded
How PNG to PDF conversion works
Drop your PNG files, arrange their order, choose a page size and margins, and convert — each PNG becomes one PDF page. PNGs are embedded losslessly, so screenshots, diagrams and text-heavy graphics stay pixel-perfect.
Transparency is preserved
PNG's alpha channel survives the trip: transparent regions stay transparent in the PDF rather than turning black or white, which matters for logos, stamps and signature images.
Everything happens locally
The PDF is assembled by your browser — screenshots of dashboards, designs and private conversations never leave your device.
The Right Way to Ship Screenshots as a Document
Pasting screenshots into a word processor to make a PDF mangles them — automatic rescaling, compression, and margins you didn't choose. Converting directly keeps control: each PNG lands on its own page at full fidelity, ordered the way you arranged it, sized to A4, Letter or the image's own dimensions. Because PNG is lossless and the embedding is too, fine UI text in a screenshot stays legible at any zoom.
Why PNG Sources Deserve Lossless Handling
PNGs usually contain synthetic imagery — screenshots, charts, diagrams, rendered text — exactly the content JPEG compression damages most visibly. Converters that silently re-encode pages to JPEG leave halos around text and banding in flat colors. This tool embeds the PNG data untouched. The trade-off is file size: pixel-dense screenshots make heavier PDFs, and if the result exceeds a portal's cap, Compress PDF handles that as a deliberate, visible step rather than a hidden default.
Design Handoffs, Bug Reports and Records
A multi-page PDF of ordered screenshots is still the most portable way to hand off a design review, document a bug's reproduction steps, or archive a chat thread — it opens identically everywhere, needs no account, and can't be edited accidentally. Batch the screenshots here, keep chronological order with the reorder arrows, and merge with cover pages or other PDFs afterwards using Merge PDF.
Frequently asked questions
Is PNG to PDF conversion lossless?
Yes — PNGs are embedded into the PDF without any re-encoding or compression, so every pixel of a screenshot or diagram is preserved exactly.
What happens to transparent backgrounds?
They stay transparent in the PDF. A logo or signature with a transparent background won't gain a white or black box.
Can I combine several PNGs into one PDF?
Yes — add up to 3 per free batch, reorder them with the arrows, and each becomes its own page in that order.
Are my images uploaded during conversion?
No — the whole conversion runs in your browser's memory and the finished PDF downloads directly. Nothing is sent anywhere.
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OpenCompress PNG
Smaller PNGs, transparency intact, processed entirely on your device.
OpenData verified: 2026-07-11 · All processing happens in your browser — no files are ever uploaded.