Why turn images into a PDF
Plenty of forms, portals and inboxes simply expect a PDF. Job applications ask for scanned certificates as a single document, letting agencies want every page of a signed tenancy in one file, universities and visa services list PDF as the only accepted format, and some email systems preview a PDF inline where a folder of photos would arrive as a clutter of attachments. Photographing paperwork with your phone gives you JPGs; this tool turns those JPGs into the PDF the other side is asking for.
Combining images also solves an ordering problem. Ten separate photos can be opened in any order, but a ten-page PDF is read top to bottom, exactly as you arranged it. Select your images in the order you want the pages and the PDF keeps that order.
One page per image, sized to fit
Each image you add becomes exactly one page, and the page is created at the image's own size rather than being forced onto A4. PDF measures pages in points, and screens measure images in pixels, so the tool converts using the standard rule of 96 pixels per inch and 72 points per inch:
Because the page matches the image exactly, nothing is cropped, no white borders are added and the aspect ratio is never distorted. PDF viewers and printers then scale the page to whatever paper you choose at print time.
Quality and file size
Inside the PDF, every page stores its image as a JPEG at 92% quality, which is visually identical to the original for photos and scans. If you add a PNG or WebP with transparent areas, those areas are filled with white first, because a printed page has no concept of transparency. Bear in mind that JPEG is a lossy format, so line art and small text will look best if the source image is sharp and reasonably high resolution to begin with.
The output size is shown before you download, and it is easy to predict: the PDF is roughly the sum of its re-encoded images, plus a few hundred bytes of structure per page.
If the result is too big to email, shrink the images first with the image resizer or image compressor and then rebuild the PDF; a photographed document rarely needs to be wider than about 1600 pixels to stay perfectly readable.
Built in your browser, never uploaded
Most JPG to PDF sites work by uploading your images to their server, converting them there and handing back a link. That means your passport scan, payslip or signed contract sits on someone else's machine, subject to whatever their retention policy happens to be. This tool takes the other approach: the PDF file is written byte by byte by JavaScript running on your own device, and the download comes straight from your browser's memory.
Nothing is sent anywhere, nothing is stored and nobody else ever sees the images or the finished document. Close the tab and every trace is gone. It also means the conversion works at the speed of your device rather than your connection, so even a large batch of photos becomes a PDF almost instantly.
Frequently asked questions
Is my image uploaded anywhere?
No. The PDF is written entirely by JavaScript running on your own device. Your images never travel over the internet, nothing is logged or stored, and closing the tab removes everything. That makes it safe for ID documents, contracts and private photos.
Can I combine several images into one PDF?
Yes. Select as many images as you like in one go, or drag them all onto the drop zone together. Each image becomes one page and the pages follow the order of your selection. Selecting a new set of files starts a fresh PDF.
What size will the PDF pages be?
Each page is sized to match its image exactly, using the standard conversion of 96 pixels to 72 PDF points. So a 1600 by 1200 pixel photo becomes a 1200 by 900 point page. Nothing is cropped, stretched or squeezed onto A4.
Does converting reduce image quality?
Images are re-encoded as JPEG at 92% quality, which is visually identical to the original for photos. PNG and WebP images with transparency are placed on a white background, because neither JPEG nor a printed page has transparency.
Why is the PDF about the same size as my images?
The PDF stores the JPEG data for each page directly, plus a small amount of structure around it, typically well under a kilobyte per page. So the file size is roughly the sum of the re-encoded images, and the tool shows you the exact output size before you download.