Convert PNG to PDF
Screenshots and graphics into one PDF, on your device, with the sharp edges kept sharp.
- Nothing is uploaded
- Works offline after first visit
- Open source
- No watermark · limit is your device’s memory; phones hold less
Convert PNG images or screenshots to a PDF in your browser. Several PNGs become one document. It is free, needs no account and adds no watermark, and your files are not uploaded: everything runs in your browser on your device. The size limit is your device’s memory, and phones hold less; give the page a short while after one visit to save itself for offline use, and then it works offline.
Done
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Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
PNG is what screenshots, diagrams and exported charts arrive as, and PDF is what a manager, a lawyer or a support desk wants back. The conversion is lossless: each PNG is embedded in the PDF as PNG data, so text in a screenshot stays crisp and transparent areas are kept transparent. Nothing is resampled and nothing is uploaded.
Several PNGs become pages of one PDF in the order you set. "Fit to each image" gives every page the exact pixel size of its screenshot; A4 or Letter with a margin centres each image on a printable page.
How it works
- Drop one or more PNG files, or tap to pick them. Reorder with the arrows.
- Pick a page size, orientation and margin.
- Convert. The PDF downloads straight from your browser.
In your browser, not on a server
A JPG is embedded directly into the PDF by pdf-lib, unchanged, unless it needs rotating by its EXIF orientation (as sideways phone photos often do), in which case it is decoded and re-encoded at high quality. A PNG is embedded losslessly. Other formats are decoded by your browser (HEIC via libheif, TIFF via UTIF.js, one page per TIFF page) and embedded as high-quality JPG. Page size, orientation and margins are applied while laying out each page in memory.
Compared with upload-based tools: Uploading a folder of receipts or ID scans to make one PDF is exactly the kind of thing that should not need a server. The PDF is assembled on your device in the time it takes to pick the files.
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
Will text in my screenshots stay readable?
Yes. PNG is embedded losslessly, so the pixels in the PDF are identical to the screenshot. Zoom in and they are still sharp.
Is transparency preserved?
Yes. Transparent regions of the PNG stay transparent in the PDF; the page background shows through, which is white in most viewers.
Can I mix PNG and JPG in one PDF?
Yes. Use the general images to PDF tool, which accepts both together, plus WebP and HEIC.
Is the file uploaded anywhere?
No. There is no server in this process. The page is a static file and the work is done by code running inside your browser tab. Give the page a short while after one visit to save itself for offline use; then you can turn off Wi-Fi and it still works.
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Guides
- How to convert a photo to PDFEvery device can do this, in different ways and different places in the menus. Here is how on each, plus combining several photos into one file.
- A free PDF Candy alternative that doesn't upload your filesPDF Candy's free plan works, with page, hourly and batch limits, and your file goes to its servers first. Here is what changes when it never leaves your device.
- Is Convertio safe?Convertio is a well-known converter with a published deletion policy. For private files, the safer choice is a converter that never receives them.
- A free Convertio alternative with no file size capConvertio's free plan caps both file size and how many conversions you get per day. Here is an alternative with no such ceiling.