How to convert AVIF to PDF
- Click Choose files or drop your AVIF images into the box above — up to 10 at a time on the free plan.
- Optionally choose the page size (Letter, A4 or the image size), orientation and margins, and drag files to change their order.
- Conversion starts right away. Download each PDF file, or click Download all to get them as one PDF.
AVIF vs PDF
| AVIF | ||
|---|---|---|
| Compression | Lossy or lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | Yes | No |
| Colors | 8, 10 or 12 bits per channel, HDR | Pages with text, vector graphics and images |
| File size (photos) | Smallest | Depends on content |
| Opens on | Chrome 85+, Firefox 93+, Safari 16+; few desktop apps and editors | Every computer, phone and browser |
| Best for | The smallest possible web images with high quality | Documents, forms, receipts and multi-page scans you send or print |
About AVIF and PDF
What is AVIF?
AVIF is a modern image format based on the royalty-free AV1 video codec. It usually beats both JPG and WebP on file size — often around half of a comparable JPG — and supports transparency, HDR and wide color. Encoding it takes noticeably longer than JPG or WebP, and support outside web browsers is still limited.
- Best compression of any common format
- Transparency, HDR and wide color
- Royalty-free
- Slow to encode
- Limited support in desktop apps and editors
What is PDF?
PDF is the universal format for documents. It looks the same on every device and printer, can hold many pages, and is accepted almost everywhere you need to submit paperwork. Putting photos or scans into a PDF is the easiest way to send several images as one file.
- Looks the same everywhere
- Many pages in one file
- Accepted by almost every form
- Hard to edit
- Images inside are not directly usable in photo apps
Why GlideConvert?
- Private by design. Your files are converted on your own device by your browser — they are never uploaded to a server. That keeps them private, avoids upload waits and means there is no queue.
- Fast. Images convert in a fraction of a second; video uses your device’s hardware encoder.
- Free. No sign-up, no watermark. 10 images, 5 audio files or one video at a time — Pro lifts the limits and removes ads.
Frequently asked questions
Can I put several images into one PDF?
Yes. Add all your AVIF files, drag them into the order you want, and you get one PDF with one image per page. Prefer separate files? Switch Combine into one PDF off.
What page size does the PDF use?
US Letter by default (A4 outside North America), with the image fitted to the page and orientation matched to each image. You can also pick A4, Letter, Legal, or make each page exactly the size of its image.
Will the images lose quality inside the PDF?
No visible loss: AVIF images are embedded at full resolution (as high-quality JPG, or as PNG when they have transparency). If the PDF is too big to email, lower the quality setting.
Is transparency kept?
Yes. Transparent and semi-transparent areas are kept as they are.
Can I convert several AVIF images at once?
Yes. The free plan handles 10 images at a time, and you can download everything as a single ZIP. Pro removes the batch limit, converts files in parallel and supports files up to 4 GB.
Are my files uploaded to a server?
No. GlideConvert runs entirely in your browser: images are processed with the browser’s built-in codecs and WebAssembly, video and audio with hardware-accelerated WebCodecs (or a WebAssembly build of FFmpeg for older formats). Nothing is sent anywhere — you can even disconnect from the internet once the page has loaded.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any up-to-date browser — Chrome, Edge, Safari, Firefox or Samsung Internet — on phones, tablets and computers, with nothing to install. On phones, extremely large images may be scaled down to fit within the browser’s memory limit; you will see a note if that happens.