Stack PNG screenshots into a PDF
Drop PNG files only. Each picture becomes one page in card order. pdf-lib embeds pixels losslessly with Flate unless you turn on optional PDF compression.
Transparency stays with compression off
RGBA PNGs keep alpha as a soft mask in the PDF. Optional compression can shrink the file but re-encodes pages as JPEG and drops clear pixels. Leave compression off for UI captures.
JPG and WebP belong elsewhere
This URL is PNG only. Image to PDF takes JPG and PNG. JPG to PDF takes a mixed batch including WebP and GIF.
How to convert PNG to PDF online for free
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Drop one or more PNG files. JPG, WebP, HEIC, and PDF are refused on this page.
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Drag the cards so the cover is first. Rotate a sideways screenshot if it needs to stand up.
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Leave Fit to image, or pick A4 or US Letter. Leave PDF compression off to keep alpha.
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Press “Create PDF”. The file is built in this tab. Nothing is uploaded.
One PNG per page, built locally
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PNG input only
The page refuses other types so lossless PNG bytes land in the PDF.
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Built in this tab
pdf-lib writes the PDF here. GustKit does not upload the pictures.
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Free, no account
No sign-up and no watermark on the PDF.
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Phone or computer
A current browser on Mac, Windows, Linux, iPhone, or Android. Nothing to install.
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One PNG, one page
A single screenshot is a one-page PDF. Two PNGs are two pages, in card order.
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Optional shrink
Compression is off by default. Turn it on only when alpha is not important.
FAQs about PNG to PDF
Why was my JPG refused?
This page takes PNG only. Use Image to PDF for JPG and PNG, or JPG to PDF for a mixed batch.
Does compression keep transparency?
No. Leave compression off for PNGs with alpha. It can help when pages are mostly opaque photos.
Is the PNG recompressed?
Not by default. Pixels stay as Flate inside the PDF.
Can I reorder after dropping files?
Yes. Drag the cards before you press Create PDF.
One PNG or many?
One PNG downloads a one-page PDF. Two or more become one PDF with a page each, in card order.
Are the images uploaded?
No. The PDF is built in this tab.