Add your AVIF file
Drop one or more .avif files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
AVIF to PBM
Converting a .avif image to .pbm re-encodes the pixels for a different balance of size, quality, and support. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop AVIF files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting AVIF image to Portable bitmap
Converting a .avif image to .pbm re-encodes the pixels for a different balance of size, quality, and support. An .avif file stores a still image (or sequence) coded with the AV1 video codec inside a HEIF-derived container. It is currently among the most efficient image formats deployed on the web, routinely beating JPEG by half at similar quality while adding HDR, wide gamut, and alpha.
A .pbm file is a Portable Bitmap: the simplest image format in common use, storing exactly one bit per pixel — black or white, with no grey and no colour. It carries a two-character magic number, the width and height, and then the pixels, and nothing else. For this route the practical draw is small enough to specify in a paragraph and to write from a shell script and uncompressed and lossless, so nothing is hidden between the header and the pixels — balanced against one bit per pixel — no grey, no colour, no transparency, which is worth knowing before you commit a large batch.
Why convert AVIF to PBM?
The practical trigger for this conversion is usually a mismatch: with .avif, encoding is much slower than JPEG or WebP, especially at high effort settings. Switching to .pbm buys you small enough to specify in a paragraph and to write from a shell script, which is why it is the better fit for masks, stencils and other genuinely two-tone raster data. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
AVIF vs PBM at a glance
| Aspect | AVIF image (.avif) | Portable bitmap (.pbm) |
|---|---|---|
| Format type | Lossy — discards detail it judges invisible to shrink files | Lossless — every pixel or sample is preserved exactly |
| How it stores data | encodes AV1 intra frames; both lossy and a mathematically lossless mode are defined | two encodings share the extension: P1 stores pixels as ASCII 0 and 1 characters, P4 packs eight pixels into each byte |
| Strongest at | serving hero images and photo galleries where bandwidth savings are significant | masks, stencils and other genuinely two-tone raster data |
| Weak spot | encoding is much slower than JPEG or WebP, especially at high effort settings | one bit per pixel — no grey, no colour, no transparency |
| Metadata | eXIF and XMP are stored as metadata items in the HEIF container alongside ICC profiles or CICP color signaling, and mainstream encoders preserve them on conversion | none beyond optional # comments in the header. There is no colour profile, no EXIF and no timestamp; a PBM carries dimensions and pixels and nothing else |
Pick PBM as the output
Select .pbm in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if PBM is selectable, the route is real and validated.
Convert on your device
Press Convert. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid PBM file. Outputs keep the original filename with the .pbm extension.
AVIF to PBM questions, answered
Will converting AVIF to PBM lose quality?
No new loss is introduced — since avif is lossy-oriented and pbm is lossless-oriented, everything the .avif file still contains is carried over exactly. What was already discarded by the original lossy encode cannot be recovered, though; converting to .pbm does not "restore" quality.
Is it private to convert AVIF files here?
Yes — the .avif file is processed inside your browser tab and never uploaded. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders. Close the tab and the file is gone from memory.
Where will the PBM file work?
Netpbm, ImageMagick, GIMP and most scientific imaging tools read PBM; browsers and consumer applications do not. Novus Convert decodes both the ASCII and the packed binary form locally and converts to PNG, JPEG, WebP and the other raster targets — which is usually the point, since PBM is a good interchange format and a poor delivery one.
Will the PBM file be bigger or smaller than my AVIF?
Larger, sometimes much larger. A lossless .pbm must store every pixel or sample the decoder produced, without the perceptual shortcuts .avif used. Use this route for editing headroom, not for saving space.
What happens to the metadata in my AVIF file?
In .avif, eXIF and XMP are stored as metadata items in the HEIF container alongside ICC profiles or CICP color signaling, and mainstream encoders preserve them on conversion. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.
Can I convert PBM back to AVIF?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .avif → .pbm → .avif is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.