PNG to PDF converter
PNG to PDF converter
Combine PNG screenshots, scans or drawings into one PDF. Transparency is placed on white so nothing disappears when the page is printed.
How this is calculated
Each PNG is embedded unchanged and scaled to fit the page minus the margin. A transparent area is drawn over a white page, because paper has no transparency.
- A screenshot keeps its own pixel size. Choosing a page much smaller than the image shrinks it on paper; choosing "Fit the page to the image" keeps one pixel of the image at one point of the page.
- Your file is read by this page in your own browser. It is never uploaded, never stored on this server and never sent to anyone. Closing the tab clears it, and the download link is released as soon as you run the tool again.
PNG screenshots, scans and diagrams become a PDF, one image to a page, with transparency placed on white so nothing disappears when the sheet is printed.
Transparency has nowhere to go on paper
A PNG can carry an empty background, which a screen shows as whatever sits behind it. Paper has no behind: this page paints a white rectangle first and draws the image over it, so a logo with a transparent surround appears on white rather than on black or on the page underneath.
Beyond that white ground the image is embedded exactly as saved, so a screenshot keeps every pixel it came with. The catch is size. A PNG of a photograph can be several times the size of the same photograph as a JPEG; screenshots and line drawings compress well in PNG, photographs do not.
Pixels, points and the sheet
On A4, A5, Letter or Legal the image is scaled to fit inside the margin, centred and with its proportions intact. With “Fit the page to the image” the sheet is sized to the picture itself plus the margin — and because one image pixel is placed at one PDF point, a 1200-pixel-wide screenshot makes a page about 423 mm wide, which is not a size any printer has.
For a screenshot the fit option keeps the image at its native size, so small type in it stays sharp at 100 per cent zoom; on a fixed sheet a wide screenshot shrinks and that text can become hard to read. Choose according to whether the file is for reading on screen or for printing.
Questions readers ask
Can I choose a black or coloured background?
No. The sheet is white, because paper is. If the image needs another ground, put that colour into the image before saving it.
Will a scanned page become searchable?
No. The scan is a picture and stays a picture. Nothing in this PDF can be selected or searched without OCR.
How many images can one run take?
Twenty files, up to 50 MB each and 150 MB in total, because every byte is held in this tab’s memory while the PDF is built.
More in Convert to and from PDF
PDF tools
Convert, join, split, number, stamp, crop, sign, fill, encrypt and inspect PDF files. Every page opens your file in this browser and writes the answer back to your own machine — nothing is uploaded.
- JPG to PDF converter Turn one or more JPG photographs into a single PDF, one image to a page, at the page size and margin you set.
- PNG to PDF converter Combine PNG screenshots, scans or drawings into one PDF. Transparency is placed on white so nothing disappears when the page is printed.
- PDF to JPG converter Render the pages of a PDF as JPG pictures at the resolution you choose, one file per page.
- PDF to text extractor Pull the selectable text out of a PDF as plain text you can copy or download, with a page marker between pages.