Manatee

Manatee opens damaged video, PDFs, archives, photos and documents on your Mac and writes out everything it can still read, then tells you exactly what it recovered (for example 34 of 41 pages). The original is never touched.

Four tabs: Repair rebuilds a video's index (mp4, mov, mkv), a PDF's cross-reference table, damaged zip, docx, xlsx and epub files, and fixes srt, csv and txt encodings. Convert handles images, video, audio, documents, spreadsheets and presentations. Reduce shrinks a file to a size limit such as 16 MB for WhatsApp or 20 MB for email. Clean strips EXIF, GPS, camera serials and document authors.

Preview the fix for free, then pay $9 once to save it. Nothing is uploaded. macOS 12 or later.