Image to PDF: turn JPG, PNG and HEIC photos into one PDF
Add one photo or a whole stack of scans, receipts, screenshots or iPhone HEIC photos, and this free image to PDF tool gives you back a single PDF with one page per image, sized to each photo or to A4 — in the order you added them, without sending a single file anywhere.
Each page is the exact shape of its photo, with no border.
Got a mix of Word, Excel, PowerPoint, images or PDFs? Convert to PDF turns them all into one PDF. Scanning paper with your phone? Try Scan to PDF, or read our Microsoft Lens alternative guide.
More image tools
See all tools
Image ConverterAny image to JPG, PNG or WebP, with resizing. Mix formats in one go.
HEIC to JPGOpen iPhone photos anywhere.
Compress ImageShrink JPG or PNG file size.
Meme GeneratorAdd top and bottom captions to an image.
GIF MakerTurn a set of images into an animated GIF.
Image ResizeResize a JPG or PNG by percentage or exact pixels.
Image CropperCrop a JPG or PNG freely or to a locked aspect ratio.
Passport Photo CheckerCheck a photo against the UK online passport photo rules.
AI Image CheckerSee if a picture says it was made or edited with AI.Image to PDF: quick facts
Turn photos and images into one PDF.
Updated
- Price
- Free. No sign-up, no watermark.
- Input
- JPG, PNG, iPhone HEIC/HEIF, WebP, GIF, BMP and AVIF.
- Pages
- Same size as each image, or A4 or US Letter with optional margins.
- Order
- Images become pages in the order you add them.
- Privacy
- Your images are processed in your browser and never uploaded.
How to combine images into one PDF
Each image becomes one page, cut to the picture’s own size and shape, in the order you added them, with any transparent areas filled in white: a single PDF however many images you start with.
- 01
Add your images
Drop in one image or several — JPG, PNG, WEBP, GIF, or BMP. They'll be added in the order you drop or select them.
- 02
Pages are built locally
Each image becomes its own page, sized to match the image, entirely on your device.
- 03
Save your PDF
Get back a single PDF file with one page per image, ready to share or print.
Tips for a neat PDF from photos and scans
Every page is exactly the image you give it, so small fixes to the pictures show up in the finished PDF.
- Crop to the edge of the paperBecause each page matches its image, a photo of a letter on a kitchen table becomes a page with the table round it. Crop each photo to the paper first with Image Cropper, and the PDF looks like a proper document.
- Resize big photos firstEach image goes in at full resolution, so a handful of phone photos can make a PDF too big to email. Scale them down in one go with Image Resize before adding them, and they’ll still read clearly on screen.
- Check the count before you sendThe button shows how many images are queued, and the message after converting says if any couldn’t be read and were skipped. A quick look at both saves you sending a PDF with a page missing.
- Give the PDF a proper nameSeveral images are saved as images.pdf. Rename the file before sending it, to something like jane-smith-payslips.pdf, so it’s easy to spot in someone’s inbox. A single image keeps its own file name.
Like every Altto tool, this runs on your device — nothing you add is uploaded. How Altto works
across is plenty for a photo of a document: on an A4-width page that’s about 240 pixels per inch, enough to print clearly. Phone photos are usually far wider, which is why shrinking them keeps a PDF light.
HEIC to PDF, straight from your iPhone
iPhones save photos as HEIC to save space, but most computers and websites can’t open them. This tool decodes them on your device and puts them into a PDF in one step.
| If you want | Choose | Result |
|---|---|---|
| Photos of documents or receipts to print | A4, with margin | Printable pages, each photo centred |
| A photo album or portfolio | Same as image | Each page the exact shape of its photo |
| To send to someone in the US | US Letter | Pages that print without scaling there |
| A smaller file to email | Any size, then Compress PDF | Set a target like 1 MB |
How to convert JPG to PDF: other ways, and what to know
Ways to do this without Altto too, on Windows, Mac and phones, and the things that trip people up.
Quick answer: to convert a JPG to PDF, add your photos to Image to PDF above in the order you want the pages, choose A4 or fit-to-photo, and save the single PDF it builds: one page per image, with nothing uploaded.
Without Altto: Microsoft Print to PDF on Windows (right-click the photo, Print), Preview on a Mac (File, Export as PDF), or Files › Create PDF on an iPhone or iPad.
Before you start: three quick checks
- Get the order right. In most tools, pages come out in the order you add or select the images. If you're doing a lot, renaming the files
01,02,03first saves a fiddly reshuffle later. - Check they really are JPGs. iPhones save photos as HEIC by default, and some PDF tools won't accept them. If yours are HEIC, convert them first with HEIC to JPG — our guide on what HEIC is and how to convert it explains why this happens.
- Tidy the photos. A crooked photo of a document with a kitchen table round the edges looks sloppy as a PDF page. Cropping each one with the Image Cropper takes seconds and makes the result look deliberate.
How to convert JPG to PDF on Windows
Windows 10 and 11 include a virtual printer called Microsoft Print to PDF, which "prints" to a file instead of paper:
- In File Explorer, select the images (hold Ctrl and click each one).
- Right-click and choose Print. On Windows 11 you may need to click Show more options first.
- Set the printer to Microsoft Print to PDF, pick your paper size (A4 in the UK) and a layout such as Full page photo.
- Untick Fit picture to frame if you don't want the edges of your photos cropped.
- Click Print, then choose a name and folder for the PDF.
How to convert JPG to PDF on a Mac
The quickest route is a Finder Quick Action: select the images, right-click, and choose Quick Actions → Create PDF. The PDF appears in the same folder — check the page order, and use Preview instead if you need to rearrange anything.
For more control, use Preview:
- Select the images in Finder and open them together in Preview.
- Show the sidebar thumbnails (View → Thumbnails) and drag them into the order you want.
- Select all the thumbnails, then choose File → Print.
- Pick the paper size, then open the PDF menu at the bottom of the dialog and choose Save as PDF.
How to convert JPG to PDF on iPhone or iPad
If the photos are in the Files app, select them, tap the More (…) button and choose Create PDF. Photos in your library need saving to Files first (select them, tap Share → Save to Files).
There's also an older trick from the Photos app: select the photos, tap Share → Print, and use the share button on the print screen to save or send the result as a PDF. Apple moves these menus around between iOS versions, so if a label differs slightly on your phone, look for the nearest match.
How to convert JPG to PDF on Android
Android's built-in printing includes a Save as PDF printer. Open a photo in your gallery app (Google Photos or your phone maker's Gallery), look for Print in the menu (⋮) or the share options, set the printer to Save as PDF and tap the download button. It's fine for one photo; for several pages in one PDF, a browser tool is usually easier. Exactly where the Print option lives varies between phones and app versions.
Which method should you use?
| Method | Several images in one PDF? | Page size | Best for |
|---|---|---|---|
| Altto (browser) | Yes | Matches each image | Mixed formats, any device, private documents |
| Microsoft Print to PDF | Yes | Paper size you pick, e.g. A4 | Pages that will be printed |
| Mac Quick Action / Preview | Yes | Image size / paper size you pick | Mac users |
| iPhone Files → Create PDF | Yes | Matches the images | Quick jobs on the phone |
| Android print → Save as PDF | Usually one at a time | Paper size you pick | A single photo |
None of these methods upload your photos anywhere — which is worth remembering before you reach for a random "free JPG to PDF" website that does.
A4 pages or image-sized pages?
This is the one choice that genuinely matters. An image-sized page (what Altto and the iPhone Files app produce) shows each photo edge to edge with no white border, which is ideal for reading on screen. If someone is going to print the PDF, or a form asks for A4, use a print-to-PDF method and choose A4 — each photo is then placed on a standard sheet. In practice, a printer will scale an image-sized page to fit the paper anyway, so either works for most everyday uses.
Keeping the PDF a sensible size
Phone photos are large, so a PDF of ten of them can easily be too big to email or to get past an upload form's limit. Two fixes:
- Shrink the photos first. A document photo rarely needs to be more than about 2,000 pixels across. Our guide on how to resize an image covers this, or use Image Resize on a whole batch at once.
- Compress the finished PDF with Compress PDF. See how to compress a PDF for what to expect.
Need to change it afterwards? Rotate PDF fixes a sideways page, Delete PDF Pages drops one you didn't mean to include, and Merge PDF adds your new PDF to an existing one.
Frequently asked questions
What Image to PDF can and can’t do. New to this? Our guide on how to convert JPG to PDF also covers Windows, Mac, iPhone and Android.