Which image formats are supported?

PNG, JPG, and JPEG. Drop one PNG or a batch — each image becomes one page in the output PDF. PNG transparency is flattened against white during conversion so the resulting PDF prints clean.

Can I reorder pages before converting?

Yes. After uploading, each PNG appears as a tile. Drag tiles to rearrange them, or use the arrow buttons on each tile. The PDF respects the final order.

Are my PNG images uploaded anywhere?

No. The conversion runs entirely in your browser using pdf-lib and the canvas API. Your PNG files never leave your device — nothing is sent to a server.

What page size does the PDF use?

Auto matches each PDF page to the PNG's natural dimensions, so there are no white borders. Pick A4 or Letter if you need a standard paper size for printing — the image is centered and scaled to fit.

Is there a file count or size limit?

There is no hard cap, but very large batches (50+ high-resolution PNGs) can be slow because everything runs locally on your CPU. Quality is processed at the resolution you set with the slider.

Does the tool work offline?

Yes, once the page has loaded. The conversion logic ships with the page — disconnect your network after opening the tool and it still works.

PNG to PDF — Free, No Upload, Convert PNG Images to PDF

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