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

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 Photo is a desktop application for repairing corrupt or damaged JPEG/JPG and other photo files on Windows and macOS. It repairs files locally and can process multiple photos in one operation. The Windows format list includes JPEG, RAW, TIFF, HEIC, MxPEG, and numerous camera formats. For severely corrupt JPEG files, Advanced Repair uses a sample JPEG from the same camera as the damaged file. The free evaluation download lets users preview repaired photos, but registration is required to save them. The product FAQ describes the software as read-only, so it does not edit or modify JPEG files. It also states that the Windows software cannot repair compressed JPEG files and may fail if a JPEG marker is missing. Listed plans are Standard at $39.99 a year, Professional at $59.99 a year, and Premium at $69.99 a year. The listed license is for a single system, and the FAQ states that purchases have a 30-day money-back guarantee.