Evidence screenshots PNG→TIFF: legibility and timeline integrity beat file size when arbitration is on the line
`screenshot-png-tiff` supports ticketing, regulatory filings, and internal audits: PNG is great for chat pastes, TIFF suits long-term OCR and batch review. Risks include Retina scaling that looks “full page” but lacks pixels, desaturated seals when color management is off, or cropped status bars that undermine “full context” claims. Standardize UTC timestamps, OS/build IDs, and window-title hashes in filenames; mask PII with tiered approvals.
Screenshot archival: capture at known device scale with profile notes, convert to TIFF, then verify microtext and cursor states across displays and print previews
- Disable night shift tricks, record browser zoom and DPR, and avoid double-compressing already lossy video frames before grabbing pixels.
- Run OCR spot checks on critical strings; magnify table footnotes; align visible clocks with authoritative server logs using explicit timezone notation.
- Package originals, TIFF derivatives, SHA256 manifests, and legal ticket IDs in WORM storage with deletion controls for regulatory holds.
PNG to TIFF (screenshots & compliance) FAQ: HiDPI scaling, color management, stitched timelines, PII, and hash chains
Counsel wants “originals,” but we only stored TIFF derivatives—are we covered?
Define “original” in policy—usually first-capture PNG plus sealed TIFF; every hash-changing step needs operator, time, and reason codes.
Laptop panel versus docked monitor disagree on color—which is authoritative for evidence?
Anchor to embedded ICC plus calibration records; document uncalibrated viewing risk and rerun critical captures on profiled hardware when disputes loom.
Stitched scrolling captures show seams—how do we defend authenticity?
Retain segment PNGs and stitching parameters; disclose algorithms; provide screen recordings as orthogonal proof when integrity is challenged.
Support staff embed customer avatars in tickets—does TIFF archiving violate privacy baselines?
Apply data-minimization reviews, redact faces/IDs, and tie retention windows to DPIA documentation before writing cold storage.
Email clients recompress PNG before analysts save TIFF—who owns the quality loss?
Ban evidence transit through lossy mail/IM clients; use controlled capture agents writing directly to the evidence vault with logged compression stages.