Does putting my images into a PDF reduce their quality?

Not for JPG or PNG. JPG files are embedded byte-for-byte with no re-compression, and PNG files are embedded as-is with transparency intact. Only other formats like WebP or GIF are re-encoded to PNG, which is lossless but produces a larger page.

What's the difference between 'Fit to image' and A4/Letter?

'Fit to image' sizes each page to its own image with no margins, so the picture fills the page edge to edge. A4 and Letter place every image onto a fixed paper size, where you can also set orientation (auto/portrait/landscape) and a margin.

How do I control the page order?

Reorder pages with the up/down arrows and drop any with the X button; the PDF follows the list order from top to bottom. You can also add files in several passes, and each new selection appends to the end of the list.

Why is my PDF so large?

Images are embedded at full resolution with no downscaling, so ten 12-megapixel phone photos make a heavy file. If the result needs to be emailable, run the images through a resizer or compressor first, then build the PDF.

How big are the margin options?

Margins are measured in PDF points, where 72 points equals 1 inch: 'small' is a 36-point (half-inch) border and 'large' is 72 points (1 inch) on every side. Margins apply only to A4/Letter pages, not to 'Fit to image'.

Image to PDF

Combine JPG/PNG images into one PDF — reorder pages, pick page size. In your browser.

Images are turned into a PDF in your browser — never uploaded anywhere.

Add images

Page size

Add some images to turn into a PDF.

What is Image to PDF?

Image to PDF is a free tool that combines JPG and PNG images into one PDF, right in your browser — a quick way to convert images to PDF for printing or sharing. Reorder pages, choose fit-to-image, A4, or Letter, and set orientation and margins before downloading.

Key features

Accepts JPG, PNG, WebP, and other image formats
Reorder or remove pages before creating the PDF
Page sizes: fit to image, A4, or Letter
Auto orientation picks portrait or landscape per image
Adjustable margins for print-ready pages

How to Convert Images to PDF (JPG/PNG → PDF)

A PDF is the right container when several images need to travel as one file that opens the same everywhere and prints predictably — a set of scanned receipts for an expense report, phone photos of a signed contract, an ID front and back, or a batch of screenshots for a bug ticket. This tool assembles JPG, PNG, WebP and other images into a single PDF locally in your browser; nothing is uploaded.

Steps

Click Add images and pick as many files as you want — you can add more in several passes; each new selection appends to the list.
Reorder pages with the ↑ / ↓ buttons and drop any you don't want with ✕. Page order in the PDF is exactly the list order, top to bottom.
Choose a page size:
- Fit to image — each page is sized to its own image, with no margins. The image fills the page edge to edge.
- A4 / Letter — every image is placed on a fixed paper size.
For A4/Letter, set orientation (auto / portrait / landscape) and margin. With auto, each page picks portrait or landscape from that image's aspect ratio, so a wide screenshot and a tall photo both fit without being rotated wrong.
Press Create PDF to download the combined file.

How the images are embedded (and why it matters for quality)

The tool embeds each picture at its native resolution — it does not downscale or re-compress to hit a target size:

JPG files are embedded as-is, byte for byte. There's no re-encoding, so a JPEG photo loses zero additional quality passing through.
PNG files are embedded as-is too, keeping transparency and lossless pixels.
Everything else (WebP, GIF, …) is re-encoded to PNG so it can be embedded, which is lossless but produces a larger page than the original WebP would.

Margins are measured in PDF points, where 72 points = 1 inch: "small" is a 36-point (½ inch) border and "large" is 72 points (1 inch) on every side.

Practical tips

For a document to print — a contract, a form — use A4 (or Letter) with a large margin so nothing runs off the printable edge.
For an on-screen archive where you just want the pictures intact, Fit to image keeps every pixel and avoids white borders.
Watch total file size. Because images are embedded at full resolution, ten 12-megapixel phone photos make a heavy PDF. Run them through an image resizer or compressor first if the result needs to be emailable.
Going the other way? Use the PDF to Image tool to turn PDF pages back into images.

All processing happens inside your browser — images are never sent to a server.

Frequently asked questions

Does putting my images into a PDF reduce their quality?: Not for JPG or PNG. JPG files are embedded byte-for-byte with no re-compression, and PNG files are embedded as-is with transparency intact. Only other formats like WebP or GIF are re-encoded to PNG, which is lossless but produces a larger page.
What's the difference between 'Fit to image' and A4/Letter?: 'Fit to image' sizes each page to its own image with no margins, so the picture fills the page edge to edge. A4 and Letter place every image onto a fixed paper size, where you can also set orientation (auto/portrait/landscape) and a margin.
How do I control the page order?: Reorder pages with the up/down arrows and drop any with the X button; the PDF follows the list order from top to bottom. You can also add files in several passes, and each new selection appends to the end of the list.
Why is my PDF so large?: Images are embedded at full resolution with no downscaling, so ten 12-megapixel phone photos make a heavy file. If the result needs to be emailable, run the images through a resizer or compressor first, then build the PDF.
How big are the margin options?: Margins are measured in PDF points, where 72 points equals 1 inch: 'small' is a 36-point (half-inch) border and 'large' is 72 points (1 inch) on every side. Margins apply only to A4/Letter pages, not to 'Fit to image'.

Privacy

Assembling the images into a PDF happens locally in your browser; none of the source images are sent to a server.