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PhotoReview Live / Lab

Camera-free workflow emulator · v0.4

Local-first · CR3 originals untouched

Ingest → Star → Evergreen v1 → Auto-save JPEG + XMP → Optional delivery

Starred RAW files automatically receive an editable Adobe Camera Raw XMP sidecar in the local library, even without a JPEG proxy. Browser-decodable previews also produce JPEG approximations. All work stays on the device until you explicitly export a ZIP or choose Dropbox delivery. Genuine CR3 sensor development is not available yet.

1. Ingest & cull

0 files

＋ Choose sample RAW and/or JPEG filesSupports multi-select · Match preview IMG_1234.JPG with IMG_1234.CR3

No samples imported yet. Use your own files, or generate demo images below to test every stage.

A browser cannot be relied on to decode Canon CR3 sensor data. A same-named JPEG companion is a visual proxy, not a true RAW develop. The workflow records and preserves the RAW association.

2. Evergreen v1 + XMP

0 selected

Delivery rating exact stars

JPEG quality 90%

Exposure 0.00 EV

Contrast +4

Highlights -83

Shadows +23

Whites -39

Blacks -43

Subtle curve (approximate) 10

Warmth (proxy) 0

Green HSL saturation 0

Blue HSL saturation 0

Saturation 0

Export long edge

Evergreen v1 - Adobe Color · Exposure 0 / Contrast +4 / Highlights -83 / Shadows +23 / Whites -39 / Blacks -43 / WB As Shot. The curve shown here is an approximation; exact curve and HSL values require a genuine ACR-exported XMP. Unspecified HSL values default to 0.

↥ Load ACR-exported XMP as a color/curve reference (optional)Use a file exported from your actual Evergreen edit. Reference curve and HSL values will be copied into new sidecars where available; the six light sliders above remain authoritative. No file is uploaded.

No reference loaded · subtle S-curve approximated and HSL unchanged.

Automatically process starred images and save JPEG/XMP

Automatic local save is ON. Finished JPEGs and XMP sidecars are written to the app's device-local delivery library without another tap. This is browser-private storage, not the visible Files app, and iOS can erase website data under certain conditions.

Local delivery library

0 files saved

A completed image will appear here automatically.

No JPEGs or XMP sidecars saved yet.

Finished image preview will appear here

The JPEG preview is a browser approximation, NOT Adobe Camera Raw rendering. XMP is a metadata sidecar; Adobe profile and curve compatibility must be verified by opening a paired CR3 in ACR. Browser conversion does NOT recover RAW highlight recovery, as-shot RAW white balance, Adobe HSL, or CR3 demosaicing. Unchanged camera white balance is the default; warmth simulates a temperature adjustment to the JPEG. A genuine local RAW engine is still required. The final RAW engine is a separate integration milestone.

Pipeline status

0Ingested

0Starred

0JPEGs ready

Processing queue

Auto-on

Your queue will appear when you assign stars.

Activity

Ready. Waiting for sample files.

3. Dropbox delivery (explicit upload only)

Optional

Use a Dropbox app with an App folder permission boundary, and OAuth PKCE. A secure HTTPS-hosted copy is required for Dropbox sign-in; the standalone local HTML file supports export but not OAuth connection.

Dropbox app key (public identifier)

Target Dropbox folder (inside app folder)

Not connected to Dropbox

Dropbox uploads use the approved directory only. If the destination doesn't exist, the tool attempts to create it. Files are not uploaded until you press Upload. The app never uploads original RAW files.

Dropbox setup checklist

Deploy this HTML as index.html to Cloudflare Pages (HTTPS).
Create a scoped Dropbox app with App folder access.
Enable files.content.write and files.metadata.write if required for folder creation.
Add the exact HTTPS page URL to the app's Redirect URIs.
Enter the public App key and press Connect Dropbox. Never enter an app secret here.
Import demo/sample files after completing authentication, because redirect reloads the page.

Validation notes

✓ Star-rating and filtering simulation
✓ Queued processing and automatic on-device JPEG save (subject to browser storage availability)
✓ One-download ZIP export of JPEGs and XMP sidecars
✓ Dropbox upload implementation (requires live authorization test)
✕ Real Canon USB tethering
✕ Native CR3 demosaicing
✓ XMP sidecar generation (ACR verification pending) · ✕ Adobe Lightroom preset execution
✕ Unattended iOS background processing

Prototype scope: local, foreground, mobile-browser testing. New JPEGs persist in this website’s private IndexedDB storage, not the Files app, and could be removed if browser website data is cleared or evicted. Source files and ratings remain session-only. Download a ZIP for an independent backup. No files are uploaded until you explicitly use Dropbox.