3-Heights PDF Analysis & Repair Tool vs Stellar Repair for Video

3-Heights PDF Analysis & Repair Tool analyzes damaged PDF documents and attempts to repair or recover their contents. It inspects objects, page trees, and content streams, then can report error types, codes, descriptions, page numbers, and event counts, with messages written to a log. Repair options include restoring data streams, fonts, cross-reference tables, pages, and images; recovery can rebuild a PDF from legible content that remains. It reads encrypted PDFs and can encrypt restored files with permission flags. Inputs include PDF 1.x, PDF 2.0, and PDF/A-1, PDF/A-2, and PDF/A-3; the manuals cite ISO 32000-1 and ISO 32000-2 conformance. Pdftools documents Shell command-line and API variants, with Windows, Linux, and macOS support and local repair delivery. Batch repair is supported. The product is paid, with pricing on request and a 30-day trial. The evaluation version analyzes files but disables Save As, so repaired or recovered files cannot be saved or viewed without the full version. The vendor cautions that some files and image compression methods cannot be recovered.

Stellar Repair for Video repairs damaged or inaccessible recordings from cameras, phones, and other video devices. It works with files on memory cards, USB drives, SSDs, HDDs, and CF cards, and supports formats including MP4, MOV, AVI, MKV, MTS, and WebM, among others. It addresses issues such as blurry, grainy, frozen, flickering, stuttering, or out-of-sync playback. For severe corruption, Advanced Repair uses a working sample file made with the same device and video format. The software can process unlimited files in one batch and lets users preview repairs before saving them. It is listed for Windows, macOS, and web browsers, but it is not for mobile devices; phone and tablet recordings need to be transferred to a Windows or Mac computer. The free download previews repaired files only up to 20% of their total size. Standard costs $49.99, paid once, Professional costs $59.99, paid once, and Premium costs $69.99, paid once; each edition is listed with a Single System license.