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thePR0M3TH3ANandClaude Opus 4.7 10a5022e9c docs: publishing tiers + zaps + NWC + JPEG/PDF fallback

Adds a "Publishing & payments" group covering the three tiers, the
Lightning plumbing, and how to wire a wallet up:

- publishing.md            — Overview of Public / Private / Premium
                             with a comparison table; how tipping vs
                             unlocking differs; replaceability +
                             republish-vs-fork.
- publishing-public.md     — Default tier. Event shape, tag layout,
                             discoverability, edit-vs-fork.
- publishing-private.md    — End-to-end encrypted to self via NIP-44
                             / NIP-04. AES-256-GCM pipeline, what stays
                             visible (pubkey, kind, d-tag), multi-
                             device decrypt via "Mine" tab, caveats
                             (no multi-recipient envelopes in v1).
- publishing-premium.md    — Zap-gated soft-gate publishing. Soft-gate
                             key derivation, watermarked preview,
                             zap-split tags (creator + platform),
                             buyer unlock flow, My Purchases vault,
                             honest framing about soft-gate limits.
- zaps.md                  — NIP-57 lightning payments. Tipping vs
                             unlocking. How to receive zaps (set
                             lud16 on profile). Fallback flow without
                             NWC (BOLT11 + QR + external wallet).
- nwc.md                   — Nostr Wallet Connect (NIP-47) setup.
                             CoinOS quickstart, supported wallets,
                             multi-device sync via NIP-44 encrypted
                             event, test-connection button, security
                             model (treat URI like a password + set a
                             budget).

Plus a "Why JPEG sometimes routes through PDF" section added to
panel-print-save.md, explaining the three fallback cases (CORS-
blocked images, tainted canvas, unsupported mode) and the auto-
switch to the print → PDF path that the browser's print engine
can handle.

Co-Authored-By: Claude Opus 4.7 <[email protected]>

2026-06-04 09:37:04 -04:00

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Save / Print / Export panel

The bottom panel in the left sidebar. Local-only output — publishing to Nostr lives in the top-right Publish flow, not here.

Save / Open (project JSON)

Save project — downloads a .json file containing the entire project state (every layer, every mode's data, the metadata, the visibility setting). One file per active design.
Open project — pick a saved JSON file. Loads it into the current session, replacing the active project. Use case: round- trip a design via email / a cloud-drive sync without going through Nostr.

Print

Print / Save as PDF — opens the browser print dialog. Pick Save as PDF in the destination dropdown to export to PDF.
The print toggles in the Export options panel above control what gets included (bleed, crop marks, guides).

Print-dialog tips

Set scale to 100% — anything else changes the trim dimensions.
Disable headers and footers — your browser may add page numbers / URLs otherwise.
For double-sided cover wraps, print the same event twice with a blank back the second time if your printer doesn't duplex the spine correctly.

Export

Export JPEG — direct rasterised export at the artboard's natural pixel size, JPEG-compressed. The resolution dropdown picks between Low (96 DPI), Standard (150 DPI), and Print (300 DPI).
Export PNG — same but as PNG (lossless). Sometimes available only for modes that support transparent backgrounds.
Pixel-art mode has its own dedicated exports (PNG at multiple scales, sprite sheet, animated GIF) in the pixel toolbox; the panel here is hidden.
Book mode has its own dedicated Export PDF… flow (page range, bleed, crop marks, split output) from the Pages overview toolbar.

Why JPEG sometimes routes through PDF

The direct-JPEG path renders every layer onto a hidden canvas, then extracts the canvas as a JPEG. That fails in three cases:

CORS-blocked images — if any image layer's source server doesn't send Access-Control-Allow-Origin: *, the browser refuses to embed the pixels in the canvas. The "Render canvas" path can't bypass this; the print engine can.
Tainted canvas — the canvas accepted the image but flagged it "tainted" once it tried to read pixels. Same root cause as #1 but caught at a different stage.
Unsupported modes — pixel-art (uses its own dedicated exporter) and standalone decks (which have a multi-slide exporter elsewhere) don't go through this path.

In any of those cases, the JPEG button automatically opens the Print → PDF flow: the browser's print engine has a separate image pipeline that handles cross-origin embeds the canvas can't touch. You'll see a toast explaining the switch ("N image(s) couldn't be embedded directly — switching to the PDF route"). Save the resulting PDF, then re-export it as JPEG from a PDF viewer if you specifically need a flat JPEG.

Designer tab

The Designer tab has a separate designerPrintSaveFieldset with the same buttons but scoped to the single-disc surface.

Tips

The JSON save is the fastest way to back up a draft you don't want to publish yet — drop the file in a private cloud folder
- reopen anywhere.
For mass production, use the JPEG export at 300 DPI by tweaking the artboard's pixel dimensions to <inches> × 300 before exporting.

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