PNG to PDF Converter

Combine PNG images into a single PDF document. Each page matches its image exactly, assemble portfolios, reports and scans in your browser, free and private.

Drop PNG files here
or click to browse, pages follow the order you add them

Your files

    Private by design. The PDF is assembled locally in your browser. No uploads, no accounts, no watermarks.

    How to convert PNG to PDF

    1. Add your PNGs , Drag and drop PNG files onto the box above, or click to pick them. Pages follow the order you add them.
    2. Create the PDF , Hit “Create PDF”. Each PNG becomes one page, sized exactly to the image, embedded without quality loss.
    3. Download , Download the finished PDF. The button shows the final file size so you know what you are getting.

    The complete guide to PNG to PDF conversion

    Illustration for the free PNG to PDF converter showing images combining into a PDF

    PNG is the format of crispness: screenshots, designs, charts and scanned graphics saved as PNG keep every pixel perfect. But a folder of PNGs is awkward to share, present or print, attachments arrive out of order, viewers scroll through separate files, and nothing ties the set together. Converting PNGs to a single PDF fixes all of that. One file, fixed page order, opens identically on every device, and prints exactly as you see it. It is the standard way to turn a collection of images into a document.

    This tool assembles your PDF with pdf-lib, the open-source library documented at github.com/Hopding/pdf-lib.

    Why a PDF beats a folder of PNGs

    The strongest reason is order and unity. A portfolio of design work, a report with chart screenshots, a set of scanned forms, in a folder these are loose files at the mercy of the viewer's sort settings; in a PDF they are a document with a beginning, middle and end that nobody can accidentally shuffle. PDF is also the universal container: phones, tablets, desktops and printers all render it the same way, while image viewers vary. And for anything official, receipts for expenses, evidence for a claim, coursework, a single PDF reads as finished, where a zip of PNGs reads as a draft.

    How pages are sized, no surprises

    This tool sizes each PDF page exactly to its image: page width and height in points equal the pixel dimensions multiplied by 72/96 (the standard screen-to-print conversion). Nothing is stretched, nothing is cropped, and no image is forced onto a standard page like A4. That means a 1920×1080 screenshot becomes a page of exactly those proportions, and a tall phone screenshot becomes a tall page.

    The consequence to understand: mixed-size PNGs produce mixed-size pages. That is usually what you want, every image shown at its true size. But if you need uniform pages, for example a portfolio where every sheet must be identical, resize your PNGs to matching dimensions first with our image resizer, then build the PDF.

    Getting the page order right

    Page order is simply the order you add the images: the first file you drop becomes page one, the next becomes page two, and so on. Plan the sequence before you start. A practical trick is to name files with leading numbers, 01-cover.png, 02-overview.png, so your file picker lists them in order. This tool does not offer drag-to-reorder pages; if the order comes out wrong, press Clear and re-add the images in the right sequence. It takes seconds and the result is exact.

    Print considerations

    PNGs are raster images, so print sharpness depends entirely on pixel dimensions. The rule of thumb is 300 dots per inch for crisp print: an A4 page at 300 DPI needs about 2480×3508 pixels. A 1080p screenshot printed full-page at A4 will look soft up close, fine for a draft, not for a client presentation. If print quality matters, start from the highest-resolution PNGs you have.

    Two more print notes. First, colours: browsers and PNGs work in sRGB, which is what most office and home printers expect, so colours generally come out as you see them, but for professional print work, verify in your design software. Second, margins: because each page is exactly the image size, there are no margins at all. Printers cannot print to the very edge of the paper, so edges may clip slightly; if that matters, add a white border around your PNGs before converting.

    File size and quality

    Your PNGs are embedded losslessly, every pixel preserved, no recompression, no quality loss whatsoever. The trade-off is file size: the PDF is roughly the sum of your PNGs, sometimes a little more. Ten full-resolution screenshots can easily make a 30–50 MB PDF, which some email systems reject. If the PDF is too heavy, compress the PNGs first with our image compressor or convert them to a smaller format before building the document.

    Tips for best results

    • Check orientation. Sideways screenshots stay sideways in the PDF, rotate images before adding them.
    • Mind transparency. PNGs with transparent backgrounds keep that transparency in the PDF, which shows as white in most viewers but can surprise in print previews.
    • One document, one topic. A focused 8-page PDF gets read; a 60-image dump gets skimmed. Split large sets into logical documents.
    • Keep the source PNGs. Rebuilding the PDF with a different order or an added page is trivial if you still have the originals.

    Bottom line: PNG to PDF turns loose images into a real document, fixed order, exact sizing, lossless quality. Add images in sequence, mind your resolution for print, and you get a professional PDF in seconds.

    Frequently asked questions

    Will the PDF pages match my PNG image sizes?

    Yes. Each page is sized exactly to its image, pixel dimensions multiplied by 72/96 into PDF points. Images are never stretched or cropped, so mixed-size PNGs produce mixed-size pages.

    In what order do the pages appear?

    In the order you add the images: first added becomes page one. Add them in your intended sequence.

    Do my PNGs lose quality in the PDF?

    No. PNGs are embedded losslessly, so every pixel is preserved exactly. The PDF is as sharp as the images you supplied.

    Can I rearrange pages after adding them?

    Not within this tool, page order is fixed as the order you add images. If the order is wrong, press Clear and re-add them in the right sequence.

    Are my images uploaded to a server?

    Never. The PDF is assembled entirely in your browser with the pdf-lib library. Your files stay on your device.

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