File Type Identifier
Documents & Conversion
Identify real file types from magic bytes instead of trusting the file extension.
Magic-byte file identifier
Compress, crop, convert and export images with configurable output settings.
Select a file above. Reading starts automatically and the result appears on the right.
Workflow
Review format and export
FILEINFO
Choose a file and configure options to see the result.
Use cases
When to use File Type Identifier
Identify real file types from magic bytes instead of trusting the file extension.
1Prepare file type identifier output for an API or documentation workflow
2Check a sample before applying it to production
3Use a reproducible result while debugging with a teammate
4Prepare editable content between PDF, Word, PowerPoint and Excel
5Combine images into PDF or export PDF pages as images
6Merge, split, compress or watermark PDFs, and reorder, rotate, extract or remove pages
7Extract PDF text or convert Word documents into Markdown
8Prepare documents for sharing, archiving and printing
9Review fonts, pagination, tables and embedded media after conversion
10Identify real file types and choose the correct conversion workflow
Guidance
Get reliable results
- 1Use representative but non-sensitive test data
- 2Review the generated result against the target platform
- 3Keep a copy of the source before replacing production data
Platform-specific rules and production policies still require review.