How to convert images to PDF (JPG, PNG, WebP, GIF)

Convert images to PDF in five steps

1. Open JPG to PDF (mixed images) or PNG to PDF (PNG files only).
2. Add your images. Each one becomes a page.
3. Drag or use the arrows to put them in the order you want, and remove any you do not need.
4. Choose the page size and, in JPG to PDF, the orientation.
5. Convert, download the PDF and flick through it before sharing.

Which tool should I use?

How images are placed on the page

Every image gets its own page, the same size as the others. It is scaled up or down to fit inside the page with a margin of about 20 points (7 mm) on each side, centred, and never cropped or stretched. That has two consequences worth planning for:

• An image whose proportions differ from the page leaves white space. Pick landscape for wide images and portrait for tall ones.
• One orientation applies to the whole PDF, so a set that mixes tall and wide photos will not suit every page equally.

Photos from a phone

Phones usually store a photo’s rotation in a tag rather than turning the pixels. FreePDFKit reads that tag for JPEGs and applies it, so portrait shots do not come out on their side. Photos of documents are different: the tool does not crop, straighten or enhance them. Crop and flatten them first in your photo app if the page edges matter.

Formats and transparency

• JPG: placed into the PDF without recompression, which keeps quality but keeps the size.
• PNG: stays lossless. Transparent areas may be flattened against the page, so check the result if the image has a see-through background.
• WebP and GIF: converted to PNG first. An animated GIF becomes one still image.
• HEIC: not supported; save the photos as JPG first.

Keep the file size under control

Because JPEGs go in as they are, the PDF is roughly as big as the photos combined, and a set of phone photos can be tens of megabytes. If the result is too large to send, open Compress PDF and start with Balanced, which recompresses large images; the compression guide explains the levels and how to check the result.

Tips for a tidy result

• Name the files in order before you add them (01-cover.jpg, 02-page.jpg), so the first list is already right.
• Keep one orientation per PDF where you can; split mixed sets into two PDFs and merge them after.
• Crop and straighten document photos in your photo app first; the tool places images exactly as they are.
• Open the finished PDF at normal size and check every page before you send it.

Scans and searchable text

The pages are pictures of whatever the images show. The PDF will not have selectable or searchable text, because FreePDFKit does not run OCR. If you need searchable scans, run OCR in a dedicated tool after converting.

Privacy

The images are read and combined in your browser, so they are not uploaded. That is useful for IDs, receipts and signed pages. See the guide to exporting PDF pages as images for going the other way, and Merge PDF if you need to join the result with other PDFs.