PDF to AVIF Converter
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AVIF is the still-image format built on the AV1 video codec, and it is the smallest mainstream image format at a given visual quality — which makes it a strong fit for page previews, document thumbnails and anything that has to load fast on the web. This converter rasterises every page of your PDF and writes each one as its own .avif file. A ten-page document comes back as ten images, not one, and the output is a picture of the page rather than live, selectable text.
How to Convert PDF to AVIF
- Upload Your PDF File: Drag and drop the PDF onto the page or click "+ Add Files" to browse. Several documents can be queued and converted with the same settings.
- Set Conversion Quality (Render DPI): This is the render resolution, not a compression dial — it decides how many pixels each page is drawn at. The list runs 72, 96, 150, 200, 300, 400, 600 and 1200 DPI, and 300 DPI is selected.
- Pick a Quality Preset or a Target Size: "Quality Preset" runs from Highest down to Lowest, with "Very High (Recommended)" selected; each entry maps to a fixed encoder quality value (see the table below). Alternatively switch to "Specific file size", type a size, and tick "Auto Scale" so the encoder is allowed to reduce the pixel dimensions if quality reduction alone will not reach it.
- Convert and Download: Click Convert. Each page returns as its own AVIF, delivered individually plus a "Download All (Zip)" button. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.
What Each Quality Preset Sends to the Encoder
The preset dropdown is not vague marketing language — each entry resolves to a specific quality value passed to the AVIF encoder:
| Quality Preset | Encoder quality | Practical effect on a page render |
|---|---|---|
| Highest | 100 | Effectively artefact-free; the largest AVIF you can get from this page |
| Very High (Recommended) | 95 | Selected entry; text edges stay clean, files stay small |
| High | 90 | Very hard to distinguish from 95 on body text |
| Medium | 80 | Good for thumbnails; faint softening around fine serifs |
| Low | 70 | Visible ringing around small type |
| Very Low | 60 | Thumbnail use only |
| Lowest | 50 | Heavy artefacts; use only when size dominates everything |
Two controls you may have seen on other AVIF pages are deliberately absent here: there is no lossless toggle and no encoder speed/effort slider on a PDF source, so the preset (or a target file size) is the whole story. If you need a genuinely lossless page render, use PDF to PNG instead.
Transparency, and Why Pages Are Always Composited
Under "Image Transparency", the "Color" dropdown decides what sits behind the page content — White is the selected entry. AVIF as a format does support an alpha channel, but the alpha-preserving "Unchanged" option is not offered for any non-PNG target on this converter, so every page is flattened onto a solid colour before encoding.
There is a second, related detail worth being straight about: alpha-capable targets are rendered through a PNG intermediate, while everything else — AVIF included — goes through an intermediate JPEG before the final encode. The AVIF you download is therefore one generation removed from the raw page render. It is invisible at the default preset on ordinary documents, but it does mean you cannot call this path pixel-exact, and it is another reason to pick PDF to PNG when fidelity outranks file size.
AVIF Against the Other Page-Image Targets
| Output | Codec / basis | Size at similar quality | Alpha on this converter | Browser support | Best for |
|---|---|---|---|---|---|
| AVIF | AV1 still frame (AOMedia) | Smallest of the four | No — page is composited | 94.67% globally per caniuse; Chrome 85+, Firefox 93+, Safari 16.4+, Edge 121+ | Fast-loading web previews |
| WebP | VP8 / VP8L (Google) | Small, larger than AVIF | Yes | Effectively universal on current browsers | A safe middle ground |
| PNG | Lossless DEFLATE | Largest of the four | Yes — "Unchanged" available | Universal | Lossless text and line art |
| JPG | JPEG DCT | Between WebP and PNG | No | Universal | Maximum compatibility, email, legacy tools |
Frequently Asked Questions
Will the text in my PDF stay selectable after converting to AVIF?
No. AVIF is a raster image format, so each page is flattened into pixels — no text layer, no copy and paste, no clickable links, no form fields. If the text has to stay live, keep the document as a PDF; if the goal was simply a smaller PDF, compress the PDF rather than converting it to images.
How much smaller is AVIF than JPG or PNG for a page render?
Substantially, and the gap widens on flat, graphic content like a document page — large areas of uniform white compress extremely well under AV1's intra-frame prediction, which is exactly what a text page is made of. AVIF generally beats both JPEG and WebP at matched quality, and comfortably beats PNG on anything but pure line art. The honest caveat is that dense scanned photographs on a page narrow the advantage considerably.
Does converting a PDF to AVIF keep page transparency?
No. The alpha-preserving "Unchanged" entry under Image Transparency is hidden for non-PNG targets, so every page is composited onto the colour in that dropdown — White unless you change it. Use PDF to PNG if you need transparent regions to survive.
Which browsers and apps can open an AVIF file?
Per caniuse, AVIF reaches 94.67% of global browser traffic: Chrome from version 85, Firefox from 93, Safari from 16.4 (partial from 16.1), and Edge from 121. Windows Photos and macOS Preview both open AVIF on current releases. Older image editors, some email clients and legacy document systems still do not, so if the file has to open absolutely anywhere, convert to PDF to PNG or PDF to JPG.
What DPI should I choose for PDF to AVIF?
Match it to where the image will actually be seen, because DPI multiplies pixel count rather than trading off artefacts. 72-96 DPI produces tiny thumbnails; 150 DPI is comfortable for reading a page on screen; 300 DPI, the selected entry, is the print-grade standard and the right pick for small text or fine line art. Going to 600 or 1200 DPI only helps if you intend to zoom deeply or run OCR, and it multiplies both encode time and file size.
Should I use the Quality Preset or "Specific file size"?
Use the preset when you care about how the pages look and want consistent quality across a document. Use "Specific file size" when a hard ceiling matters more — an upload limit, a bandwidth budget — and tick "Auto Scale" so the encoder is allowed to reduce the pixel dimensions if quality reduction alone cannot reach your target. Setting an aggressive size on a high-DPI render without Auto Scale is the usual cause of a disappointing result.
Why did my 40-page PDF produce 40 files instead of one?
Because a page is an image and an image holds one page. Every PDF-to-image conversion here maps one page to one output file, numbered in page order, and hands them back individually plus a "Download All (Zip)" bundle. AVIF does have a multi-image container form, but this converter does not emit one — if you want the whole document as a single visual artefact, PDF to GIF produces one looping animation of the pages.
Is converting a PDF to AVIF private?
Your PDF is uploaded over an encrypted connection, rendered and encoded on our servers, and deleted automatically after a few hours — never shared, never made public. There is no sign-up and no watermark. On a long document the practical constraint is upload size and connection speed rather than anything in the format, since each page becomes a separate full-resolution image before it is compressed.