Image to PDF

Make a PDF From Your Images

One picture per page, 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 is nothing to pick between.

Formats it reads

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

Mix formats freely 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 is placed 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 is cropped, and you get white bands on two sides when the aspect ratios differ. This is the safe default and the right choice 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. 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 page dimensions exactly. It ignores the original aspect ratio, so people look tall or wide. It exists for cases where 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; 0 mm is what you want for full-bleed.

Ordering

Images appear as a list in the order you added them, and you move any row up or down. A folder selection does not always arrive in the order your file manager displayed, so check the list before converting — particularly 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. Two consequences:

• Transparency is flattened. JPEG has no alpha channel. A PNG logo with a transparent background comes out on white. If preserving transparency matters, this is the wrong tool.
• It is not lossless. 92% is high enough that the difference is invisible in normal viewing, but if you re-run an already-JPEG image through it you are compressing twice. For archival masters, keep the originals.

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

What people use this for

Scanned receipts collected into one expenses claim. Photographs of a signed contract sent as a single document. Screenshots assembled into a bug report. Book pages photographed on a phone. Portfolio images arranged for a printer who only accepts PDF.

For the last case, be aware that A4 pages are the only size available, and that print shops usually want CMYK. Ask before assuming.

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.

Going the other way — pulling images back out of a PDF — is PDF to Image. If your images need cropping or resizing first, the image tools handle that before you convert.