adobe-upgrade-migration

# Adobe Upgrade & Migration ## Overview Guide for the most critical Adobe migrations: JWT to OAuth Server-to-Server, PDF Services SDK v3 to v4, Photoshop API v1 to v2 endpoints, and general SDK version upgrades. ## Prerequisites - Current Adobe SDK installed - Git for version control - Test suite covering Adobe integration points - Staging environment for validation ## Instructions ### Migration 1: JWT to OAuth Server-to-Server (CRITICAL) **Deadline passed:** JWT (Service Account) credentials reached EOL June 2025. If you are still using JWT, migrate immediately. ```typescript // BEFORE (JWT — no longer works) import jwt from 'jsonwebtoken'; const jwtToken = jwt.sign({ exp: Math.round(Date.now() / 1000) + 60 * 60 * 24, iss: orgId, sub: technicalAccountId, aud: `https://ims-na1.adobelogin.com/c/${clientId}`, 'https://ims-na1.adobelogin.com/s/ent_firefly_sdk': true, }, privateKey, { algorithm: 'RS256' }); // AFTER (OAuth Server-to-Server — current standard) const tokenResponse = await fetch('https://ims-na1.adobelogin.com/ims/token/v3', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded' }, body: new URLSearchParams({ client_id: process.env.ADOBE_CLIENT_ID!, client_secret: process.env.ADOBE_CLIENT_SECRET!, grant_type: 'client_credentials', scope: process.env.ADOBE_SCOPES!, }), }); ``` **Migration steps:** 1. In Developer Console, open your project 2. Click **Add credential** > **OAuth Server-to-Server** 3....