Observed arrival · 2026-09-02

FirmaCR: a focused Costa Rican signing desk for Mac

firmacr.com Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

A native macOS app for signing and verifying PDFs with Costa Rica’s digital signature cards.

Landing page captured for the 2026-09-02 issue.

Field notes

FirmaCR presents signing and verification as a three-step desktop workflow: mark a location, authenticate with a card PIN, then inspect the resulting PDF. It saves a separate copy rather than altering the original and supports an optional invisible signature image while retaining the digital signature in the document. The page identifies PAdES-LT as the target format and says timestamping sends a document fingerprint rather than the PDF itself.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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