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Formats & limits on ConvertFiles
What ConvertFiles can read, what it can write, and exactly where the limits are — one reference page for the whole bench.
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Supported formats
| Kind | Formats |
|---|---|
| Video | In: MP4, WEBM, MOV, MKV, AVI, FLV, WMV, 3GP, M4V, TS, GIF · Out: MP4, WEBM, MOV, MKV, AVI, GIF, plus JPG/PNG still frames |
| Audio | In and out: MP3, WAV, M4A, OGG (Vorbis), FLAC, AAC, OPUS, AIFF, WMA, ALAC (delivered in M4A) · plus speech transcription to TXT or SRT |
| Images | In: JPG, PNG, WEBP, GIF, BMP, AVIF, TIFF, ICO, HEIC, SVG · Out: JPG, PNG, WEBP, GIF, BMP, AVIF, TIFF, ICO, SVG (traced) · plus AI background removal to transparent PNG and images-to-PDF (up to 30 images) |
| Documents | Word (DOCX, DOC, ODT, RTF, TXT), Excel (XLSX, XLS, ODS, CSV), PowerPoint (PPTX, PPT, ODP) → PDF · PDF → editable Word (DOCX), Excel (XLSX), PowerPoint (PPTX), PNG/JPG at 72–300 DPI, or plain text · OCR to text for scanned PDFs (20-page cap) · merge (up to 20), split, rotate, compress, protect, unlock, watermark |
| Utilities | QR codes — generate a PNG, or scan/decode a QR image back to text · text → PDF (up to 20,000 characters) |
No format matches that filter.
Limits, stated plainly
- Uploads: up to 200 MB per file (Merge PDF: up to 20 PDFs, 200 MB total).
- Reverse video: clips up to 3 minutes.
- Video to GIF: the first 60 seconds of the video.
- Text to PDF: up to 20,000 characters per document.
- Rate limits: fair-use limits per visitor keep the tools fast for everyone — there are no per-day job counters and no watermarks.
- Cannot be converted: DRM-protected files and PDFs whose password you do not know. Scanned PDFs cannot become editable Word files directly — but the PDF OCR tool reads them into plain text. Full explainer in the docs.
- Transcription: speech-to-text runs on files up to 30 minutes long.
- Scanned-PDF OCR: up to 20 pages per run (split longer scans first).
Not sure which format you need? The docs formats section has the rule-of-thumb guide, and the tool index lists every converter pair.