Check supported file types
Check every document, image, and video extension RenamerX accepts, plus preview and Description limits.
RenamerX accepts the extensions below without regard to capitalization. A supported extension lets the file enter processing, but damaged or unusual files may still fail.
Supported extensions
| Category | Extensions |
|---|---|
| Images | JPG, JPEG, PNG, WebP, GIF, BMP, TIF, TIFF, AVIF, EXR, TGA, ICO, PBM, PGM, PPM, HEIC, HEICS, HEIF, CR2, CR3, NEF, NRW, ARW, RAF, ORF, RW2, PEF, DNG, 3FR, ERF, X3F, GPR, SRW, SR2, RAW |
| Videos | MP4, MOV, M4V, MKV, AVI, WebM, TS, MTS, M2TS, WMV, FLV, 3GP, 3G2, MXF, MPG, MPEG, OGV, QT, M2V, 3GPP, 3GP2, DV, VOB |
| Documents | PDF, DOC, DOCX, DOCM, DOTX, DOTM, PPT, PPTX, PPTM, POTX, POTM, PPSX, XLS, XLSX, XLSM, XLTX, XLTM, TXT, MD, MARKDOWN, RTF, CSV, TSV, HTML, HTM, XML, EPUB, ODT, ODS, ODP, JSON, LOG, YAML, YML |
Understand processing limits
For HEIC, HEICS, HEIF, and camera RAW files, RenamerX uses a preview saved inside the file. If the file does not contain a usable preview, visual analysis may fail.
RenamerX uses text from a PDF when available. For an image-based PDF, it can also use an image from the first page. Multi-page scans and PDFs without a usable first-page image can produce limited results.
For a video, RenamerX analyzes representative frames with timestamps instead of every frame. Important details that appear only briefly may not be included, so review the result before applying it.
Understand preview limits
RenamerX asks the operating system to create thumbnails. A generic icon or missing thumbnail does not mean AI processing failed.
Some supported videos can be analyzed but not played in the detail panel. Check the item status and generated fields when playback is unavailable.
Know which paths are skipped
RenamerX skips unsupported extensions, files without an extension, and temporary files ending in .crdownload, .part, or .tmp.
Recursive folder intake skips hidden directories and these common development directories: node_modules, target, dist, build, coverage, .next, .nuxt, .cache, and vendor.
Skipped files do not enter AI processing. RenamerX classifies a file by its extension and does not override an unsupported extension from content detection.
Check which files support Description metadata
RenamerX generates a Description for review. For the following file types, Apply can write it to the file's metadata. This does not add text to a document body or change visible image, video, or PDF content.
| Category | Extensions |
|---|---|
| Images | JPG, JPEG, PNG, WebP, GIF, TIF, TIFF, AVIF, HEIC, HEIF, CR2, CR3, NEF, NRW, ARW, RAF, ORF, RW2, PEF, DNG, ERF, X3F, GPR |
| Videos | MP4, MOV, M4V, 3GP, 3G2 |
| Documents |
Writing Description metadata is separate from renaming or moving the file. If it fails, the successful file operation remains in place. When RenamerX recorded the original Description metadata, Undo also attempts to restore it.