Image to PDF

Make a PDF From Your Images

You get one picture per page, on A4, in the order you choose. This is the page for JPG to PDF, PNG to PDF and every other still-image format listed below. They all go through the same converter, so there's nothing to choose between.

Formats it reads

JPG, PNG, WebP, GIF, BMP and AVIF. Animated GIFs contribute their first frame. If your browser can display an image, the converter can almost certainly read it, because decoding goes through the same image pipeline.

You can mix formats in one batch. A PDF built from three phone photos and two PNG screenshots is perfectly normal.

Fit modes, and which to pick

Each image goes on an A4 page (portrait or landscape, your choice) using one of three modes.

Fit scales the image until it fits inside the page, keeping its proportions. Nothing gets cropped, and you'll see white bands on two sides when the aspect ratios differ. It's the safe default and the one to use for documents, receipts and anything with text near the edges.

Fill scales until the image covers the whole page, again keeping proportions, and crops whatever hangs over. There's no white space, but a portrait photo on a landscape page loses its top and bottom. Good for full-bleed photo books, bad for a scanned form.

Stretch forces the image to the exact page dimensions and ignores the original aspect ratio, so people end up looking tall or wide. Only use it when you know your images already match the page shape.

The margin slider runs from 0 to 30 mm and applies inside the page edge. 10 mm keeps content clear of a printer's unprintable border, and 0 mm is what you want for full-bleed.

Ordering

Images show up as a list in the order you added them, and you can move any row up or down. A folder selection doesn't always arrive in the order your file manager showed it, so check the list before converting. This catches people out with camera filenames like IMG_9 and IMG_10.

The quality trade-off, stated plainly

Every image is re-encoded as JPEG at 92% quality before it goes into the PDF. That has two effects.

• Transparency is flattened. JPEG has no alpha channel, so a PNG logo with a transparent background comes out on white. If you need to keep the transparency, this is the wrong tool.
• It isn't lossless. At 92% you won't see the difference in normal viewing, but if you feed in an image that's already a JPEG, you're compressing it twice. Keep the originals if they're archival masters.

The upside is file size. A folder of 4 MB phone photos becomes a PDF you can actually email.

What people use this for

Collecting scanned receipts into one expenses claim, or sending photographs of a signed contract as a single document. People also assemble screenshots into a bug report, turn book pages photographed on a phone into one file, and arrange portfolio images for a printer who only accepts PDF.

If you're doing that last one, remember that A4 is the only page size available and print shops usually want CMYK. Ask them before you assume.

Limits and the reverse trip

Up to 100 MB per image and 250 MB in a batch, which is far more than any camera produces. Everything runs locally in the tab.

To go the other way and pull images back out of a PDF, use PDF to Image. If your images need cropping or resizing first, the image tools handle that before you convert.