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MOCHILAB / AI SKILL
Print Image Effective PPI
Read real PNG/JPEG headers and compare effective print resolution, physical dimensions, bleed and fit/crop geometry.
What it helps with
Read real PNG/JPEG headers and compare effective print resolution, physical dimensions, bleed and fit/crop geometry.
Say it like this
Read this image's real pixels and check it at 24 by 36 inches.
Use the printer's bleed and PPI requirement and show crop or margins.
What you receive
Ask for the actual PNG/JPEG and explicit physical trim size, unit, per-side bleed, fit/crop intent and printer-specific minimum PPI. Read only files under a specific user-supplied root, reject traversal and links. Report encoded and orientation-adjusted pixels and effective resolution. Keep unrecognized or malformed headers as review errors rather than claiming printable quality.
Give the assistant your actual files or records and confirmed rules. It asks for missing facts rather than inventing records; you do not need to hand-fill JSON. Receive a traceable report and detailed review rows for download.
Scope
Header/geometry audit, not full image decoding or print certification. No resampling, file modification, universal 300-PPI rule, color/ICC or PDF checks.
The script reads supplied local files and creates reports without network or model calls. Your assistant still uses its configured services; this does not promise absolute privacy for a conversation. The Skill is free and needs Python3.10+. Optional AI interpretation follows your existing model service charges.
Demand and technical basis