Rescue corrupted PDF files in seconds — diagnose, repair, export. No subscription, no cloud, 100% on your PC. ★ THE DIFFERENCE Most PDF repair tools are online-only, requiring you to upload sensitive documents to a stranger's server. Fast PDF Repair runs entirely on your PC. Your files never leave your device. ★ HOW IT WORKS 1. Open or drop a PDF file 2. Automatic diagnosis: version, objects, pages, issues detected 3. Choose Full Repair or Rebuild Xref 4. Save the repaired file 5. Open and verify instantly ★ AUTOMATIC DIAGNOSIS The moment you load a PDF, the engine scans its structure and reports: PDF version, object count, page count, and every issue found — missing xref table, wrong stream lengths, damaged trailer, corrupted entries. ★ FULL REPAIR Rescues objects from damaged files, rebuilds the cross-reference table, fixes stream lengths, and promotes compressed object streams (PDF 1.5+ ObjStm) back to top-level objects. Handles truncated files, garbage bytes, and missing trailers. ★ REBUILD XREF ONLY Lighter fix — rebuilds just the cross-reference table from scratch without modifying objects. Perfect when only the xref or trailer is damaged but objects are intact. ★ HEALTH BADGE At-a-glance status: green badge for valid PDFs, red badge with issue count for damaged ones. Stats grid shows version, objects, pages, and file size. ★ ISSUES LIST Every detected problem is listed in a monospace panel: "missing xref table", "wrong stream length for object 5", "damaged trailer" — so you know exactly what was wrong. ★ DRAG & DROP Drop a PDF directly onto the window. No file dialogs needed. ★ PURE C ENGINE Zero-dependency PDF parser with deflate decompressor (puff.c reference implementation). No external libraries, no runtime dependencies. ★ PRIVATE BY DESIGN Files never leave your device. No telemetry, no cloud processing, no account required. Repair sensitive legal, financial, or medical PDFs with confidence. Family-friendly. No account. No internet needed after install. Download once, repair forever.