Convert AVIF to PDF
Free, unlimited AVIF to PDF conversion that runs entirely inside your browser. No upload, no sign-up, no watermark.
Convert your AVIF files to PDF
or drop them here, or paste with Ctrl+V · files never leave your device
Settings
Nothing queued yet. Add as many files as you like — everything runs on your own device.
Nothing is uploaded
Conversion runs in your browser. Your files never touch a server, so there is no copy of them to leak.
No sign-up, no watermark
No account, no email, no daily limit, and nothing stamped across your image.
Batch and folders
Drop a hundred files at once and download the results as a single ZIP.
Works offline
Once this page has loaded you can disconnect entirely and it still works.
This converter turns AVIF images into PDF files without uploading anything. The conversion runs inside this page using your own device's processor, so your photos never leave your computer — there is no server copy to worry about, no queue to wait in, and no limit on how many files you convert.
AVIF is a modern format built on the AV1 video codec, producing the smallest files of any widely supported image format. All current browsers decode AVIF. Outside the browser, support is still thin — which is usually why you need it converted. PDF, by contrast, universal. Every device on earth can open a PDF.
AVIF turns up when you save an image from a site that has modernised its delivery. Browsers handle it fine, but nearly everything else — desktop editors, office software, print services — does not. PDF is the pragmatic choice when the file has to leave the browser.
How to convert AVIF to PDF
- Add your AVIF files. Drag them onto the box above, click to browse, or paste an image straight from your clipboard. You can add as many at once as you like.
- Adjust the settings if you need to. The defaults suit most images. PDF is lossless, so there is no quality setting to adjust. Pick a background colour if your image has transparent areas.
- Download the PDF file. Each file gets its own download button as soon as it finishes, and you can pull the whole batch down as a single ZIP.
What changes when you convert AVIF to PDF
Every format conversion involves trade-offs, and vague tools hide them. Here is exactly what happens to your image in this particular conversion.
- PDF has no transparency channel, so any transparent areas are filled with a solid colour. White is used by default and you can pick a different colour before converting — this is the single most common surprise when going from AVIF to PDF.
- The result is a document rather than an image. Choose "Fit to image" to size each page to its picture with no border, or pick A4, US Letter, Legal, A3 or A5 with a margin — which is what most application forms and print shops expect. Portrait and landscape can be forced, or left on Auto to follow each image.
What happens to the file size
Measured, not estimated: two 1200 x 800 pixels references — a photograph and a flat-colour graphic — put through this converter.
| Reference image | As AVIF | As PDF | Change |
|---|---|---|---|
| Photograph | 104 KB | 223 KB | +114% |
| Graphic with text | 4 KB | 28 KB | +686% |
Yours will differ: size depends more on what is in the picture than on the formats involved.
About AVIF (AV1 Image File Format)
AVIF is a modern format built on the AV1 video codec, producing the smallest files of any widely supported image format.
Where you probably got it: Downloaded from a modern website that serves next-gen images.
Strengths
- Typically 30–50% smaller than JPG at visually identical quality
- Handles transparency, HDR and wide colour gamut
- Royalty-free and supported in all current browsers
Limitations
- Encoding is computationally expensive — noticeably slower than JPG or PNG
- Very little support outside browsers: most desktop and print software cannot open it
- Can smear fine texture at aggressive settings
About PDF (Portable Document Format)
PDF is a page-based document format that renders identically everywhere, which is why forms and print shops demand it.
Support: Universal. Every device on earth can open a PDF.
Strengths
- Looks the same on every device, operating system and printer
- Combines many images into one tidy, ordered document
- The format almost every official form, application and print shop asks for
Limitations
- A document, not an image — you cannot edit the pixels afterwards
- Cannot be used as an image on a web page
- Transparency is flattened onto a white page
Is it safe to convert AVIF online?
Here, yes — and you can check rather than trust. Open your browser’s developer tools, switch to the Network tab and convert a AVIF file: no request carrying your image is made. Disconnect from the internet after this page has loaded and the converter still works, which would be impossible if a server were doing the conversion.
That is worth verifying wherever you convert, because most online converters do upload, and AVIF files are so often personal photos and documents people would not hand to a stranger. Once a file is on somebody else’s server you are relying on a privacy policy rather than on anything you can observe. We wrote up how to tell a safe converter from a risky one in more detail.
Frequently asked questions
How do I convert AVIF to PDF?
Drag your AVIF file onto the box above, or click it to browse. The conversion starts immediately in your browser and the PDF download appears within a second or two for most images. You can drop in a whole folder of files at once and download them together as a ZIP.
Are my AVIF files uploaded to a server?
No. The conversion happens locally in your browser, so your files are never transmitted anywhere — the tool even works with the network disconnected once the page has loaded. That is also why there is no file size or file count limit: nothing costs us anything per conversion. The practical ceiling is your own device's memory, which on a phone means very large images may fail.
Does AVIF to PDF keep transparency?
It cannot — PDF has no transparency channel at all. Transparent pixels are filled with a background colour, which defaults to white. Use the background colour picker before converting if you need black or a brand colour instead. If you need to keep the transparency, convert to PNG or WebP rather than PDF.
Will converting AVIF to PDF reduce the quality?
A little. A PDF page is lossless in itself, but the picture placed on it is stored as JPEG, so it is compressed once on the way in. The quality slider controls that, and the default of 90 is high enough that the difference is invisible in print. Raise it if the image contains small text you need to stay crisp.
Can I put several images into one PDF?
Yes — drop in as many as you like and leave "Merge all images into one PDF" ticked. Each image becomes a page, in the order shown, and you can move any page up or down with the arrows beside it before downloading. Choose A4 or US Letter if the PDF is going to be printed or submitted to a form, or "Fit to image" if you want no border at all.
What is the difference between AVIF and PDF?
AVIF is a modern format built on the AV1 video codec, producing the smallest files of any widely supported image format. PDF is a page-based document format that renders identically everywhere, which is why forms and print shops demand it. In practice the choice comes down to compatibility: all current browsers decode AVIF. Outside the browser, support is still thin — which is usually why you need it converted. Meanwhile universal. Every device on earth can open a PDF.