Add your PEF file
Drop one or more .pef 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.
PEF to PBM
Developing a .pef camera file into .pbm turns unprocessed sensor data into a finished image any app can open. 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 PEF 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 Pentax RAW to Portable bitmap
Developing a .pef camera file into .pbm turns unprocessed sensor data into a finished image any app can open. A .pef file is a Pentax Electronic File, the proprietary RAW format of Pentax DSLRs now produced under Ricoh Imaging. Pentax is unusual in offering photographers an in-camera choice between .pef and Adobe's open DNG, making it one of the few brands to treat its native RAW as optional.
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 PEF to PBM?
The practical trigger for this conversion is usually a mismatch: with .pef, smaller ecosystem than Canon/Nikon/Sony formats, so niche tools sometimes lag. 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.
PEF vs PBM at a glance
| Aspect | Pentax RAW (.pef) | Portable bitmap (.pbm) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | tIFF-based structure holding 12- or 14-bit Bayer mosaic data depending on body generation | two encodings share the extension: P1 stores pixels as ASCII 0 and 1 characters, P4 packs eight pixels into each byte |
| Strongest at | raw development from Pentax K-mount DSLRs and the 645 medium-format line | masks, stencils and other genuinely two-tone raster data |
| Weak spot | smaller ecosystem than Canon/Nikon/Sony formats, so niche tools sometimes lag | one bit per pixel — no grey, no colour, no transparency |
| Metadata | full EXIF with Pentax MakerNotes covering lens ID, shake-reduction state, and drive modes; XMP edits are stored in sidecar files by mainstream editors | 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. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export.
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.
PEF to PBM questions, answered
Will converting PEF to PBM lose quality?
Since pef is lossless-oriented and pbm is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .pbm itself requires.
Is it private to convert PEF files here?
Yes — the .pef file is processed inside your browser tab and never uploaded. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export. 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 PEF?
It depends on the content: two encodings share the extension: P1 stores pixels as ASCII 0 and 1 characters, P4 packs eight pixels into each byte. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my PEF file?
In .pef, full EXIF with Pentax MakerNotes covering lens ID, shake-reduction state, and drive modes; XMP edits are stored in sidecar files by mainstream editors. 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.