About screenshot to PDF
Screenshot conversion separates stored pixels from their placement size on the PDF page. By default, Auto page size with DPR 1 and zero margin uses one PDF point per captured pixel: a 1440 × 900 screenshot produces a 1440 × 900-point page. Set an integer DPR from 1 to 4 to divide the image placement dimensions while retaining the embedded pixels. At DPR 2 that image occupies 720 × 450 points; with 18-point margins the page becomes 756 × 486 points. Margins remain PDF points and are not divided. DPR is a sizing divisor, not a guarantee of the capture’s real physical screen dimensions. It applies only to Auto pages; A4, Letter and other fixed paper sizes use their existing image-fit behavior regardless of DPR. Changing placement size does not resample the embedded image, although a viewer or printer scales it for display. PNG captures embed losslessly and JPEG streams are retained without re-encoding.
How to screenshot to PDF
- 01
Add your captures
Drop in screenshots from any tool. PNG is the ideal source because it keeps UI text perfectly sharp.
- 02
Choose the sizing divisor
Use an integer DPR from 1 to 4. On Auto pages, 2 halves the placement dimensions and 4 quarters them, without reducing the embedded pixel count.
- 03
Choose Auto or fixed paper
Auto applies DPR and then adds margins in PDF points. Choose A4 or Letter for fixed paper; DPR has no effect in those modes.
- 04
Convert and download
Press Convert to PDF. Multiple captures become sequential pages in one document.
What this tool does
- Auto pages use one PDF point per captured pixel at the default DPR 1 and zero margin
- DPR 1–4 divides Auto image placement dimensions without resampling embedded pixels
- Zero margin by default so the capture fills the page edge to edge
- PNG captures embedded losslessly; JPEG captures copied without re-encoding
- Several captures assembled into one sequential document in a single pass
Limitations worth knowing
Every PDF tool has constraints. Stating them plainly is more useful than discovering them halfway through your work.
- DPR is an Auto-page sizing divisor, not a physical screen-size measurement. Fixed paper ignores DPR, and margins are never divided.
- Pages sized to a capture are not standard paper sizes, so printing them will scale the content — choose A4 or Letter if print is the destination.
- Very long full-page captures produce unusually tall single pages; a PDF page cannot be split automatically at a sensible break.
- A JPEG screenshot already carries compression artefacts around text, and conversion cannot remove them. Capture as PNG where you can.
- Transparency in a captured window shadow is flattened onto white.
How your file is handled
This tool runs entirely inside this browser tab. When you choose a file, your browser reads it from your own disk and hands the bytes to JavaScript running on this page — no network request carries your document anywhere. You can confirm that yourself: open your browser’s developer tools, switch to the Network panel, and run the tool. You will see no upload.
Nothing is stored after the fact. Closing or reloading this tab discards the file, the result and everything derived from them, because none of it ever left your machine. Read how local processing works.
Questions about screenshot to PDF
Why shouldn’t I use A4 for screenshots?
A4 fits the image onto fixed paper and ignores DPR. Auto lets you choose placement dimensions from the captured pixel dimensions divided by DPR, plus margins. Neither mode resamples the embedded pixels, but your viewer or printer scales them for display. Inspect small text at the size you intend to use.
What is the device pixel ratio setting for?
It divides image placement width and height on Auto pages by an integer from 1 to 4 without changing embedded pixels. A 1440 × 900 image at DPR 2 occupies 720 × 450 PDF points, or a 756 × 486-point page with 18-point margins. It does not guarantee physical screen size, and it has no effect on fixed paper sizing.
Will the text in my screenshot stay sharp?
The embedded PNG pixels are preserved losslessly, and JPEG streams are retained without re-encoding. DPR changes their placement size, not their pixel count. Readability still depends on the source capture, placement size, viewer zoom and printing; inspect the result rather than assuming every small label stays legible.
Can I put several screenshots into one PDF?
Yes. Add them all and each becomes its own page, in the order shown. Pages may differ in size if the captures do.
Tools that pair with this one
- PNG to PDFConvert PNG screenshots, diagrams and logos to PDF without softening a single edge.
- Images to PDFDrop a mixed pile of JPG, PNG, WebP and BMP files and get one coherent PDF.
- JPG to PDFTurn one or many JPG files into a PDF with the original JPEG data left untouched.
- PDF Page Size ChangerRebuild your document on a different paper size.
- Crop PDFTrim away margins, scanner borders and dead white space.
- Merge PDFCombine several PDFs into a single document, in the order you choose.