How Do You Convert an Image to PDF?
You convert an image to PDF by adding your photos, screenshots or pictures to QuickCatPDF's Image to PDF tool, putting them in order and clicking Convert to PDF. It accepts JPG, PNG, HEIC, WebP, AVIF, TIFF, GIF, BMP and SVG, even mixed in one batch, and it runs in your browser so your images are never uploaded.
You get one PDF with a page per image, or a ZIP with one PDF per image. Turning a single photo to PDF works exactly the same way as a batch of fifty. There's no sign-up, no watermark and no limit on how often you use it.
How to Convert Images to PDF With QuickCatPDF
To create a PDF from images, follow four steps.
- Click Select images, drop files on the page, or paste a screenshot with Ctrl+V. On a phone, Take photo opens the camera.
- Arrange the thumbnails by dragging them, with Move earlier and Move later, or with Sort by name or date. Rotate or remove any image.
- Pick your settings: Page size, Orientation, Margins, Images per page and Image quality.
- Click Convert to PDF, then Download PDF (or Download ZIP if you chose PDF per image (ZIP)).
Each thumbnail shows its page number and format, so you can check the order before converting.
Why Use QuickCatPDF to Make a PDF From Images?
QuickCatPDF combines every common image format in one PDF. An iPhone HEIC photo, a PNG screenshot and a WebP picture from a website can sit side by side in the order you choose, without converting any of them first.
It's also built as a high quality image to PDF converter. JPG photos are copied into the PDF without re-compression, PNG and other lossless images keep every pixel, and SVG drawings stay as sharp vectors.
It's a private image to PDF converter: your images stay on your device. The conversion runs in your browser, the photo location data stored by phones is removed from JPGs, and after the first visit the page works offline. In our test, eight images in eight different formats became one PDF in about a second.
The limits: the tool doesn't make text in images searchable, and very large batches depend on your device's memory (it warns you above 150 images or 500 MB).
Which Image Formats Can You Convert to PDF?
The tool converts all the formats people use day to day, and each one has its own page with extra options.
| Format | Typical source | Dedicated page |
|---|---|---|
| JPG / JPEG | Cameras, phones, the web | JPG to PDF |
| PNG | Screenshots, graphics with transparency | PNG to PDF |
| HEIC / HEIF | iPhone and iPad photos | HEIC to PDF |
| WebP, AVIF | Websites, newer phones | WebP to PDF, AVIF to PDF |
| TIFF | Scanners, faxes, print work | TIFF to PDF |
| GIF, BMP | Animations, old software, Windows | GIF to PDF, BMP to PDF |
| SVG | Logos, icons, diagrams | SVG to PDF |
| DICOM | X-ray, CT and MRI scans | DICOM to PDF |
The file type is detected from the file's contents, so a photo with the wrong ending (such as a JPG named ".png") still converts correctly. RAW camera files and Photoshop (PSD) files aren't supported; export them as JPG or PNG first.
Which Page Size and Layout Should You Choose?
Fit to image is best for screens: each page takes the exact shape of its image, with no white borders. For printing, choose A4 (for an image to A4 PDF) or US Letter, with Small (10 mm) or Large (20 mm) margins so printers don't cut the edges.
Orientation on Auto turns each page to match its image, so landscape photos get landscape pages. Images per page puts 2 or 4 images on one sheet: 2 suits the front and back of an ID card, 4 suits receipts or a contact sheet of photos.
How Do You Keep the PDF Small Enough to Share?
Choose a lower Image quality. High keeps photos looking the same at a smaller size, Balanced resizes them to at most 2,500 pixels (a 12-megapixel photo dropped from 253 KB to 63 KB in our test), and Small file goes further.
For a fixed upload limit, such as a 200 KB job or exam portal, use Image to PDF under 200KB, which finds the best quality that fits automatically. For photos of paper documents, Scan to PDF crops and whitens pages first, which also makes them smaller.
Can You Turn Phone Photos, Screenshots and Receipts Into a PDF?
Yes, these are the most common uses. Phone photos, including iPhone HEIC files, go straight in. For screenshot to PDF, paste the screenshot with Ctrl+V. Receipts work well at 4 per page on A4.
For ID cards, photograph the front and back, set Images per page to 2 and print on one sheet. Everything stays on your device, which is important for ID documents and receipts with card details.
Frequently asked questions
Is there a free image to PDF converter with no watermark?
Yes, it's completely free, with no sign-up, no watermark and no daily limit. Your device does the converting, so there's no per-file cost.
Are my images uploaded to a server?
No, the images are read and converted by your browser, on your device. You can check this by switching off your internet after the page loads; the tool still works.
Can I convert multiple images to PDF at once?
Yes, add all the images and leave Output on One PDF. Each image becomes a page in the order shown, and you can reorder them before converting.
Does converting images to PDF reduce quality?
No, not at the default Original (no quality loss) setting: JPGs are copied unchanged and other images are stored losslessly. Lower quality settings are there only to make smaller files.
Is there an image to PDF app?
Yes, the site can be installed from your browser's menu ("Install" or "Add to Home Screen"). It then opens like an app and works offline.
How many images can I convert at once?
There's no fixed limit. Each file can be up to 100 MB, and the tool warns you above 150 images or 500 MB because very large batches depend on your device's memory.
Does it work on iPhone and Android?
Yes, it works in Safari, Chrome and other mobile browsers. Use Select images for your gallery or Take photo for the camera.
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