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Formats & limits on Convert PDF
What Convert PDF 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 |
| Images | In and out: JPG, PNG, WEBP, GIF, BMP, AVIF, TIFF, ICO · plus one-image PDFs |
| Documents | Word (DOCX, DOC, ODT, RTF, TXT), Excel (XLSX, XLS, ODS, CSV), PowerPoint (PPTX, PPT, ODP) → PDF · PDF → editable Word (DOCX), PNG/JPG at 72–300 DPI, or plain text · merge (up to 20), split, rotate, compress, protect, unlock |
| Utilities | QR codes (PNG), text → PDF (up to 20,000 characters) |
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, PDFs whose password you do not know, and scanned PDFs to editable text (no OCR). Full explainer in the docs.
Not sure which format you need? The docs formats section has the rule-of-thumb guide, and the tool index lists every converter pair.