Signfolio

CONVERT FILES. KEEP THEM PRIVATE.

Convert PNG to PDF online.

Put your images in order, choose a page size, and download a PDF. Free, without an account. Your files stay in your browser.

Make a PDF from your images.

Choose PNGs or drop them here. Each image becomes one page.

Up to 20 images · 10 MB / 8 MP each · 25 MB / 32 MP combined

Convert one PNG or combine several

A receipt, a screenshot, a scanned form: choose up to 20 PNG images and arrange them in the order you need. The converter creates one PDF with one image per page. It does not merge existing PDF files.

Keep the whole image on the page

Images fit inside the selected page size without stretching or cropping. A4 and US Letter support portrait, landscape, or automatic orientation. “Match each image” uses the image dimensions at 96 pixels per inch; any chosen margin is added around it.

What happens to transparent backgrounds?

PNG transparency is preserved when the image is embedded. Most PDF readers display the transparent area as white paper. If you want a reusable transparent signature image instead of a PDF, use our signature maker.

A PDF you can sign immediately

After conversion, choose “Sign this PDF” to create and place a signature. The PDF passes directly to the signer in this browser session. You can also sign a PDF you already have.

Supported files and limits

This tool accepts PNG files only, including transparent PNGs. Each image must be at most 10 MB, 8 megapixels, and 16,000 pixels on either side. A batch supports up to 20 images, 25 MB and 32 megapixels combined. These limits help protect browser memory. Damaged PNGs may need to be re-exported from an image editor.

Can I convert the PDF back into images?

Yes. Our PDF to PNG converter exports selected full pages as PNG images. The resulting images show the whole PDF page, including its white background and margins. Explore all working tools in the PDF tools directory.