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SnapOtter/apps/docs/nl/guide/supported-formats.md
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SnapOtterandGitHub d10d0f544f fix: release QA hardening across processing, media, security, and CI gates (#649) 
A release-readiness QA pass over the whole product. The commits split into
defects a user would hit and gates that were reporting green while measuring
nothing.

## Fixes that change behaviour

Rate limiting was bypassable on every install: TRUST_PROXY defaulted to true, so
request.ip came from a client-set header and a forged X-Forwarded-For got past
the login limiter. The default is now a private-network trust list.

A transient Postgres outage stranded in-flight jobs, leaving finished output on
disk with no row pointing at it. A reconciler now resolves those rows and adopts
the bytes rather than dropping the work.

A Redis connection that moved to a new address wedged every read-blocked
consumer, so completions stopped signalling while health still answered 200.
Socket timeouts plus subscriber pings recover it.

Installing more than one AI bundle left the shared venv multi-versioned and
silently broke three tools. The installer now reconciles distributions to one
version each.

Converting an image to JXL at quality 1 through 4 returned a 500, because
libjxl 0.7 rejects the distance those values compute. The quality is floored at
what the encoder honours. A missing ffmpeg was also reported to the user as a
corrupt upload; it now says the engine is unavailable.

RAW uploads reached an unpatched LibRaw on arm64, so it is built from source at
0.22.2, and the release scan was split so it can fail on an unfixed critical
instead of hiding it behind ignore-unfixed.

## Gates that could not fail

Two mutation lanes ran zero mutants because Stryker crawled the gitignored docs
build; coverage discarded its whole report on any failing test; the lint gate
skipped root tests, scripts, and two workspaces; and several generated matrices
counted a host missing ffmpeg as a passing tool. Each now measures what it
claims.

Full evidence and the outstanding release items are tracked locally and are not
part of this branch.
2026-07-27 15:37:30 +08:00

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---
description: "Ondersteunde bestandsformaten over alle modaliteiten - 55+ afbeeldingsinvoerformaten, video, audio, PDF en bestandsformaten."
i18n_source_hash: e53ecf65be25
i18n_provenance: human
i18n_output_hash: 791254c201df
---
# Ondersteunde formaten {#supported-formats}
SnapOtter verwerkt bestanden over vijf modaliteiten: afbeelding, video, audio, PDF en bestanden. Deze pagina somt alle ondersteunde formaten op.
## Afbeeldingsformaten {#image-formats}
SnapOtter ondersteunt 55+ afbeeldingsformaten voor invoer en 17 formaten voor uitvoer.
## Invoerformaten {#input-formats}
### Webstandaarden (9) {#web-standards-9}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| JPEG | .jpg, .jpeg | Sharp (native) | |
| PNG | .png | Sharp (native) | Eerste frame van APNG geëxtraheerd |
| WebP | .webp | Sharp (native) | |
| GIF | .gif | Sharp (native) | Geanimeerd ondersteund |
| AVIF | .avif | Sharp (native) | |
| SVG | .svg | Sharp (librsvg) | Gesaneerd tegen XXE/SSRF |
| SVGZ | .svgz | gunzip + Sharp | Bescherming tegen gzip-bombs |
| APNG | .apng | Sharp (native) | Alleen eerste frame |
| JPEG XL | .jxl | djxl / ImageMagick | Fallback in twee niveaus |
### Professioneel (7) {#professional-7}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| TIFF | .tiff, .tif | Sharp (native) | Meerdere pagina's ondersteund |
| PSD | .psd | ImageMagick | Afgeplatte composiet |
| EPS | .eps, .epsf | ImageMagick + Ghostscript | Rasterisatie op 300 dpi, beveiligingsgehard |
| OpenEXR | .exr | ImageMagick | Lineair-naar-sRGB-conversie |
| Radiance HDR | .hdr | ImageMagick | Lineair-naar-sRGB-conversie |
| DPX | .dpx | ImageMagick | Log-naar-sRGB-conversie |
| Cineon | .cin | ImageMagick | Film/VFX-formaat |
### Camera-RAW (23) {#camera-raw-23}
| Formaat | Extensies | Cameramerk | Decoder |
|--------|-----------|-------------|---------|
| DNG | .dng | Adobe (universeel) | exiftool / ImageMagick + LibRaw |
| CR2 | .cr2 | Canon (vóór 2018) | exiftool / ImageMagick + LibRaw |
| CR3 | .cr3 | Canon (2018+) | exiftool / ImageMagick + LibRaw |
| NEF | .nef | Nikon | exiftool / ImageMagick + LibRaw |
| NRW | .nrw | Nikon (Coolpix) | exiftool / ImageMagick + LibRaw |
| ARW | .arw | Sony | exiftool / ImageMagick + LibRaw |
| ORF | .orf | Olympus | exiftool / ImageMagick + LibRaw |
| RW2 | .rw2 | Panasonic | exiftool / ImageMagick + LibRaw |
| RAF | .raf | Fujifilm | exiftool / ImageMagick + LibRaw |
| PEF | .pef | Pentax/Ricoh | exiftool / ImageMagick + LibRaw |
| 3FR | .3fr | Hasselblad | exiftool / ImageMagick + LibRaw |
| IIQ | .iiq | Phase One | exiftool / ImageMagick + LibRaw |
| SRW | .srw | Samsung | exiftool / ImageMagick + LibRaw |
| X3F | .x3f | Sigma | exiftool / ImageMagick + LibRaw |
| RWL | .rwl | Leica | exiftool / ImageMagick + LibRaw |
| GPR | .gpr | GoPro | exiftool / ImageMagick + LibRaw |
| FFF | .fff | Hasselblad (legacy) | exiftool / ImageMagick + LibRaw |
| MRW | .mrw | Minolta | exiftool / ImageMagick + LibRaw |
| MEF | .mef | Mamiya | exiftool / ImageMagick + LibRaw |
| KDC | .kdc | Kodak | exiftool / ImageMagick + LibRaw |
| DCR | .dcr | Kodak | exiftool / ImageMagick + LibRaw |
| ERF | .erf | Epson | exiftool / ImageMagick + LibRaw |
| PTX | .ptx | Pentax (compact) | exiftool / ImageMagick + LibRaw |
### Moderne formaten (3) {#modern-formats-3}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| JPEG 2000 | .jp2, .j2k, .j2c, .jpc, .jpf, .jpx | opj_decompress / ImageMagick | Digital cinema, medische beeldvorming |
| QOI | .qoi | Inline TypeScript-codec | Game-ontwikkeling, embedded systemen |
| HEIC/HEIF | .heic, .heif | heif-convert / heif-dec | iPhone-foto's |
### Legacy/systeem (4) {#legacy-system-4}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| BMP | .bmp | ImageMagick | |
| ICO | .ico | ImageMagick | Grootste laag geëxtraheerd |
| CUR | .cur | ImageMagick | Windows-cursor (ICO-variant) |
| TGA | .tga | ImageMagick | Detectie alleen op extensie |
### Wetenschappelijk en gaming (2) {#scientific-and-gaming-2}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| FITS | .fits, .fit, .fts | ImageMagick | Astronomie (NASA-standaard) |
| DDS | .dds | ImageMagick | Game-textures (DirectX) |
### Interchange (6) {#interchange-6}
| Formaat | Extensies | Decoder | Opmerkingen |
|--------|-----------|---------|-------|
| PPM | .ppm | Sharp (native) | Kleuren-pixmap |
| PGM | .pgm | Sharp (native) | Grijswaarden |
| PBM | .pbm | Sharp (native) | 1-bits bitmap |
| PNM | .pnm | Sharp (native) | Overkoepelend formaat |
| PAM | .pam | Sharp (native) | Willekeurige map |
| PFM | .pfm | Sharp (native) | Float-map |
## Uitvoerformaten (17) {#output-formats-13}
| Formaat | Encoder | Kwaliteitsregeling | Beschikbaar in |
|--------|---------|----------------|-------------|
| JPEG | Sharp native | 1-100 | Alle tools |
| PNG | Sharp native | Compressie 0-9 | Alle tools |
| WebP | Sharp native | 1-100 | Alle tools |
| AVIF | Sharp native | 1-100 | Alle tools |
| TIFF | Sharp native | 1-100 | Volledige conversietools |
| GIF | Sharp native | 1-100 | Volledige conversietools |
| JXL | Sharp native | 1-100 | Alle tools |
| HEIC | heif-enc CLI | 1-100 | Volledige conversietools |
| HEIF | heif-enc CLI | 1-100 | Volledige conversietools |
| BMP | ImageMagick CLI | Lossless | Convert-tool |
| ICO | ImageMagick CLI | Lossless | Convert-tool |
| JP2 | opj_compress CLI | Compressieverhouding | Convert-tool |
| QOI | Inline codec | Lossless | Convert-tool |
| PSD | ImageMagick CLI | Lossless | Convert-tool |
| PPM | ImageMagick CLI | Lossless | Convert-tool |
| EPS | ImageMagick CLI | Lossless | Convert-tool |
| TGA | ImageMagick CLI | Lossless | Convert-tool |
## Videoformaten {#video-formats}
Videodecodering en -codering worden afgehandeld door FFmpeg (statische build), dus elke gangbare container en codec wordt bij de invoer ondersteund.
### Invoercontainers (15) {#input-containers-15}
| Formaat | Extensies | Typische codecs | Opmerkingen |
|--------|-----------|----------------|-------|
| MP4 | .mp4 | H.264, H.265, AV1 | Meest gebruikte container |
| QuickTime | .mov | H.264, ProRes | Apple opname/bewerking |
| WebM | .webm | VP8, VP9, AV1 | Royaltyvrij webformaat |
| Matroska | .mkv | Elke | Flexibele open container |
| AVI | .avi | Diverse | Legacy Microsoft-container |
| M4V | .m4v | H.264 | Apple MP4-variant |
| AVCHD | .mts | H.264 | Camcorder-opnamen |
| BDAV | .m2ts | H.264 | Blu-ray / AVCHD-transportstroom |
| 3GP | .3gp | H.264, MPEG-4 | Mobiele opname |
| Flash Video | .flv | H.264, VP6 | Legacy streaming |
| Windows Media | .wmv | VC-1, WMV | Windows Media |
| MPEG | .mpg, .mpeg | MPEG-1, MPEG-2 | Video uit het dvd-tijdperk |
| MPEG-TS | .ts | MPEG-2, H.264 | Broadcast-transportstroom |
| Ogg | .ogv | Theora | Open Ogg-video |
### Uitvoerformaten {#output-formats}
| Formaat | Extensie | Videocodec | Geproduceerd door |
|--------|-----------|-------------|-------------|
| MP4 | .mp4 | H.264 | Convert, compress en de meeste videotools |
| QuickTime | .mov | H.264 | Convert Video |
| WebM | .webm | VP9 | Convert Video |
| GIF | .gif | - | Video naar GIF |
| WebP | .webp | - | Video naar WebP (geanimeerd) |
### Ondertitels {#subtitles}
| Formaat | Extensie | Bewerkingen |
|--------|-----------|-----------|
| SubRip | .srt | Embedden, inbranden, extraheren, automatisch genereren |
| WebVTT | .vtt | Embedden, inbranden, extraheren, automatisch genereren |
| ASS / SSA | .ass | Embedden, inbranden (ondersteunt styling) |
## Audioformaten {#audio-formats}
Audio wordt eveneens verwerkt door FFmpeg.
### Invoerformaten (11) {#input-formats-11}
| Formaat | Extensies | Compressie | Opmerkingen |
|--------|-----------|-------------|-------|
| MP3 | .mp3 | Lossy | Universele compatibiliteit |
| WAV | .wav | Ongecomprimeerd (PCM) | Studio / bewerking |
| FLAC | .flac | Lossless | Open lossless-codec |
| AAC | .aac | Lossy | Ruwe AAC-stream |
| M4A | .m4a | Lossy (AAC) / Lossless (ALAC) | MPEG-4-audio |
| Ogg Vorbis | .ogg | Lossy | Open formaat |
| Opus | .opus | Lossy | Modern, lage latency |
| WMA | .wma | Lossy | Windows Media Audio |
| AIFF | .aiff | Ongecomprimeerd (PCM) | Apple ongecomprimeerd |
| AMR | .amr | Lossy | Spraak / mobiel |
| AC-3 | .ac3 | Lossy | Dolby Digital |
### Uitvoerformaten {#output-formats-1}
| Formaat | Extensie | Codec | Geproduceerd door |
|--------|-----------|-------|-------------|
| MP3 | .mp3 | LAME | Convert Audio, Extract Audio |
| WAV | .wav | PCM | Convert Audio, Extract Audio |
| FLAC | .flac | FLAC (lossless) | Convert Audio |
| Ogg | .ogg | Vorbis | Convert Audio |
| M4A | .m4a | AAC | Convert Audio, Extract Audio |
## Documentformaten {#document-formats}
Documentverwerking gebruikt qpdf, LibreOffice, Ghostscript, Pandoc en WeasyPrint.
### Invoerformaten (15) {#input-formats-15}
| Formaat | Extensies | Engine | Opmerkingen |
|--------|-----------|--------|-------|
| PDF | .pdf | qpdf, Ghostscript, pdfcpu | Kern-documentformaat |
| Word | .docx, .doc | LibreOffice | Microsoft Word |
| Excel | .xlsx, .xls | LibreOffice | Microsoft Excel |
| PowerPoint | .pptx, .ppt | LibreOffice | Microsoft PowerPoint |
| OpenDocument | .odt, .ods, .odp | LibreOffice | Tekst, spreadsheet, presentatie |
| Rich Text | .rtf | LibreOffice | Rich text tussen apps |
| Platte tekst | .txt | LibreOffice, Pandoc | UTF-8-tekst |
| Markdown | .md | Pandoc | CommonMark / GFM |
| HTML | .html | WeasyPrint | Naar PDF gerenderd |
| EPUB | .epub | Pandoc, LibreOffice | E-boekformaat |
### Uitvoerformaten {#output-formats-2}
| Formaat | Extensies | Geproduceerd door |
|--------|-----------|-------------|
| PDF | .pdf | Word/Excel/PowerPoint naar PDF, Markdown naar PDF, HTML naar PDF |
| PDF/A | .pdf | PDF/A Convert (archivering) |
| Word | .docx, .odt, .rtf, .txt | Convert Document, PDF naar Word, Markdown naar Word |
| Presentatie | .pptx, .odp | Convert Presentation |
| Spreadsheet | .xlsx, .ods, .csv | Convert Spreadsheet |
| HTML | .html | Markdown naar HTML |
| EPUB | .epub | Convert to EPUB |
| Afbeeldingen | .png, .jpg | PDF naar Image |
## Bestandsformaten {#file-formats}
Data- en archieftools converteren tussen gestructureerde formaten en bundelen bestanden.
| Formaat | Extensies | Conversies |
|--------|-----------|-------------|
| CSV | .csv | Van/naar JSON en Excel; splitsen en samenvoegen; vanuit XML |
| JSON | .json | Van/naar CSV, XML en YAML |
| XML | .xml | Van/naar JSON; naar CSV |
| YAML | .yaml, .yml | Van/naar JSON |
| Excel | .xlsx | Van/naar CSV |
| ZIP | .zip | Archieven maken, inhoud extraheren |
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