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Convert images to PDF

Combine JPG, PNG and WebP images into a single PDF — reorder pages, pick A4, Letter or fit-to-image, and set margins. Built entirely in your browser.

Drop images here or browse

JPG · PNG · WebP — add several, then drag the grip handle to set the order

    🔒 Your images are turned into a PDF on your device — nothing is uploaded.

    Why use it

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    Combine into one file

    Turn a stack of photos, scans or screenshots into a single, shareable PDF.

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    Reorder & control

    Drag images into order and choose A4, Letter or fit-to-image with margins.

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    Private

    No uploads, no watermark — everything happens locally in your browser.

    Fitting pixels onto a page

    An image has pixel dimensions; a PDF page has physical ones measured in points, at 72 to the inch. Placing an image therefore requires deciding a scale, and that decision determines print quality. A 1,200-pixel-wide photograph placed across the 8.27-inch width of A4 lands at about 145 pixels per inch — fine on screen, visibly soft in print, where 300 ppi is the usual target.

    Working backwards gives a useful rule: to fill an A4 page at print quality you want roughly 2,480 × 3,508 pixels. Below about 150 ppi, upscaling will not help, because the detail is not in the file. The honest options are to accept the softness, print smaller, or rescan.

    Aspect ratio is the other consideration. Photographs from a phone are typically 4:3 or 3:4, while A4 is closer to 1:1.41, so an image fitted to the page leaves margins on two sides. Filling the page instead means cropping. Neither is wrong, but stretching to fit — distorting the aspect ratio — always looks wrong, and is worth checking in the preview.

    Choosing between JPEG and lossless inside the PDF

    PDF can embed image data in several encodings, and the choice matters more than it appears. Photographs should stay as JPEG, and critically, a JPEG can be embedded directly without being decoded and re-encoded. That matters because every JPEG re-encode discards more information — the generation loss that makes a repeatedly re-saved image progressively blotchy around edges.

    Screenshots, scanned text and line art are the opposite case. They have large flat areas and hard edges, which JPEG handles badly, producing the grey mosquito noise around black text that makes a scanned document look dirty. Lossless Flate compression keeps those crisp and often produces a smaller file as well, because flat colour compresses extremely well.

    The rule of thumb: continuous-tone photograph, JPEG; anything containing text or sharp lines, lossless. Mixing them across pages in one document is entirely valid, and is what a good scanner driver does automatically.

    What comes along with the image

    Photographs carry EXIF metadata — the camera model, the exposure settings, the date and time, and frequently GPS coordinates precise to a few metres. Converting to PDF can carry that into the document, so a PDF assembled from holiday or property photographs may disclose exactly where and when each was taken.

    EXIF also carries an orientation flag, which is why images sometimes appear rotated after conversion. The pixels are stored in one orientation and a tag tells viewers to rotate them; software that ignores the tag shows the raw orientation. If a page comes out sideways, that is the cause.

    Strip metadata before conversion if the document is going anywhere public — the EXIF remover does it in one pass. To go the other direction, PDF to JPG extracts pages back out as images.

    Image to PDF FAQ

    How do I convert JPG to PDF?

    Drop your JPG, PNG or WebP images, drag them into order, choose a page size, and click Create PDF. Each image becomes a page.

    Can I combine many images into one PDF?

    Yes — add as many as you like and they're merged into one PDF in the order you set.

    Are my images uploaded?

    No. The PDF is built entirely in your browser, so your photos never leave your device.

    What page sizes are supported?

    A4, US Letter, or fit-to-image, with margin and orientation options.

    How many pixels do I need for a full-page print?

    About 2,480 × 3,508 for A4 at 300 ppi. Around 1,240 × 1,754 gives 150 ppi, which is acceptable for casual printing but visibly soft. Upscaling a smaller image does not add detail.

    Why is one of my pages rotated?

    The image carries an EXIF orientation tag rather than being stored rotated. Software that ignores the tag displays the raw pixel orientation. Removing metadata or rotating the source before conversion fixes it.