diff --git a/mindspace-long-image.mjs b/mindspace-long-image.mjs
index 1cc1ddb..61d4623 100644
--- a/mindspace-long-image.mjs
+++ b/mindspace-long-image.mjs
@@ -7,6 +7,13 @@ import { pathToFileURL } from 'node:url';
 const DEFAULT_VIEWPORT_WIDTH = 1280;
 const DEFAULT_VIEWPORT_HEIGHT = 720;
 const MAX_LONG_IMAGE_HEIGHT = 20000;
+export const LONG_IMAGE_EXPORT_STYLE = `
+[data-mindspace-public-share],
+.publication-share-fab,
+.publication-share-sheet {
+  display: none !important;
+}
+`;
 
 export function isLongImageDownloadRequest(query) {
   const value = String(query?.download ?? query?.export ?? '').trim().toLowerCase();
@@ -84,6 +91,7 @@ export async function renderLongImage({
       type: 'png',
       animations: 'disabled',
       caret: 'hide',
+      style: LONG_IMAGE_EXPORT_STYLE,
     });
     return {
       outputPath: destination,
diff --git a/mindspace-long-image.test.mjs b/mindspace-long-image.test.mjs
new file mode 100644
index 0000000..503f7b8
--- /dev/null
+++ b/mindspace-long-image.test.mjs
@@ -0,0 +1,19 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  isLongImageDownloadRequest,
+  LONG_IMAGE_EXPORT_STYLE,
+} from './mindspace-long-image.mjs';
+
+test('recognizes supported long-image download query values', () => {
+  assert.equal(isLongImageDownloadRequest({ download: 'long-image' }), true);
+  assert.equal(isLongImageDownloadRequest({ export: 'png' }), true);
+  assert.equal(isLongImageDownloadRequest({ download: 'document' }), false);
+});
+
+test('long-image capture style hides platform page actions', () => {
+  assert.match(LONG_IMAGE_EXPORT_STYLE, /\[data-mindspace-public-share\]/);
+  assert.match(LONG_IMAGE_EXPORT_STYLE, /\.publication-share-fab/);
+  assert.match(LONG_IMAGE_EXPORT_STYLE, /\.publication-share-sheet/);
+  assert.match(LONG_IMAGE_EXPORT_STYLE, /display:\s*none\s*!important/);
+});
diff --git a/package.json b/package.json
index 28ba32a..a2e6a08 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "ci:page-data-dev-loop-smoke": "node scripts/ci-page-data-dev-loop-smoke.mjs",
     "migrate:agent-code-run-config": "node scripts/migrate-agent-code-run-config-from-env.mjs",
     "test:scenario:john4-diet": "node scripts/run-scenario-test.mjs --scenario john4-children-hobby-diet-update",
-    "test": "node --test api-core-retry.test.mjs auth.test.mjs asr-proxy.test.mjs billing.test.mjs billing-token-state.test.mjs billing-recharge.test.mjs wechat-pay.test.mjs wechat-oauth.test.mjs wechat-mp.test.mjs wechat-media.test.mjs wechat/image-generation-policy.test.mjs wechat/verify/generated-thumbnail.test.mjs schedule-intent.test.mjs schedule-reminder-worker.test.mjs capabilities.test.mjs policies.test.mjs server/portal-api-auth-middleware.test.mjs server/portal-config-routes.test.mjs server/portal-plaza-discovery-routes.test.mjs server/portal-runtime-routes.test.mjs server/portal-gateway-services-bootstrap.test.mjs chat-skills.test.mjs chat-intent-router.test.mjs chat-finish-sync.test.mjs chat-agent-run-gate.test.mjs conversation-display.test.mjs user-publish.test.mjs user-memory-profile.test.mjs skills-registry.test.mjs skill-runtime-policy.test.mjs excel-analyst.test.mjs agent-run-gateway.test.mjs agent-run-routes.test.mjs session-broker.test.mjs sse-event-taxonomy.test.mjs goosed-proxy-boundary.test.mjs agent-run-stream.test.mjs mindspace-h5-html-finish-guard.test.mjs admin-routes.test.mjs services/orchestrator/admin-config.test.mjs services/orchestrator/contracts.test.mjs services/orchestrator/checkpoint.test.mjs services/orchestrator/runtime.test.mjs services/orchestrator/app.test.mjs services/orchestrator/server.test.mjs services/orchestrator/shadow-dispatcher.test.mjs services/orchestrator/shadow-observer.test.mjs services/orchestrator/observability.test.mjs services/orchestrator/executor-gateway.test.mjs services/orchestrator/executor-job-store.test.mjs image-make-admin-config.test.mjs asset-gateway.test.mjs image-make-client.test.mjs mindspace-image-generation.test.mjs mindspace-image-generation-routes.test.mjs mindspace-image-review.test.mjs mindspace-run-public-html-scope.test.mjs direct-chat-service.test.mjs tool-gateway.test.mjs mindspace.test.mjs mindspace-scan.test.mjs mindspace-assets.test.mjs mindspace-local-runtime-services.test.mjs mindspace-local-server-adapter.test.mjs mindspace-public-asset-token.test.mjs mindspace-remote-server-adapter.test.mjs mindspace-server-adapter.test.mjs mindspace-pages.test.mjs mindspace-page-sync-service.test.mjs public-site-bases.test.mjs mindspace-html-download-links.test.mjs mindspace-page-purge.test.mjs mindspace-public-delivery.test.mjs mindspace-public-page-context.test.mjs mindspace-published-page-csp.test.mjs mindspace-published-script-localize.test.mjs agent-run-deliverable-check.test.mjs mindspace-public-route.test.mjs mindspace-publications.test.mjs mindspace-public-links.test.mjs mindspace-chat-save.test.mjs mindspace-chat-save-service.test.mjs mindspace-chat-docx-package.test.mjs mindspace-public-finish-sync.test.mjs mindspace-wechat-html-delivery.test.mjs mindspace-chat-context.test.mjs mindspace-canonical-url.test.mjs mindspace-conversation-package.test.mjs mindspace-conversation-package-artifact-service.test.mjs mindspace-conversation-package-audit.test.mjs mindspace-conversation-package-backfill.test.mjs mindspace-conversation-package-public-html.test.mjs mindspace-conversation-package-verify.test.mjs mindspace-conversation-package-registry.test.mjs mindspace-conversation-package-routes.test.mjs mindspace-conversation-package-store.test.mjs mindspace-conversation-schema.test.mjs mindspace-runtime-config.test.mjs mindspace-config.test.mjs mindspace-analytics.test.mjs mindspace-rybbit.test.mjs mindspace-service.test.mjs mindspace-storage-adapter.test.mjs mindspace-content-scan.test.mjs mindspace-html-localize.test.mjs mindspace-visual-editor.test.mjs mindspace-cleanup.test.mjs mindspace-thumbnails.test.mjs mindspace-workspace-thumbnails.test.mjs mindspace-workspace-sync.test.mjs mindspace-workspace-publication-delivery-service.test.mjs mindspace-workspace-tool-service.test.mjs mindspace-mcp-scoped-token.test.mjs mindspace-asset-preview.test.mjs mindspace-agent-jobs.test.mjs mindspace-agent-runner.test.mjs mindspace-sandbox-mcp.test.mjs mindspace-userdata-postgres.test.mjs postgres-user-data-space-service.test.mjs user-data-space-service.test.mjs page-data-routes.test.mjs page-access-policy.test.mjs page-access-visitor.test.mjs page-data-public-service.test.mjs page-data-integration.test.mjs page-data-log-store.test.mjs page-data-ops.test.mjs page-data-session-store.test.mjs page-data-browser-client.test.mjs page-data-policy-index.test.mjs message-stream.test.mjs mindspace-service/mindspace-rpc-server.test.mjs plaza-posts.test.mjs plaza-interactions.test.mjs plaza-algorithm.test.mjs plaza-seo.test.mjs plaza-ops.test.mjs user-auth.test.mjs llm-providers.test.mjs admin-guard.test.mjs user-feedback.test.mjs memory-v2.test.mjs memory-v2-admin-config.test.mjs memory-v2-lifecycle.test.mjs memory-v2-adapter-scaffold.test.mjs memory-v2-backend-contract.test.mjs memory-v2-health.test.mjs memory-v2-runtime.test.mjs memory-v2-plugin-backends.test.mjs memory-v2-pgvector.test.mjs memory-v2-pgvector-schema.test.mjs memory-v2-pgvector-backfill.test.mjs memory-v2-pgvector-smoke.test.mjs memory-v2-qdrant.test.mjs memory-v2-weaviate.test.mjs memory-v2-mem0.test.mjs memory-v2-letta.test.mjs memory-v2-external-adapters.test.mjs scripts/embed-memory-v2-local-hash.test.mjs scripts/check-memory-v2-app-canary.test.mjs scripts/check-memory-v2-config-gaps.test.mjs scripts/check-memory-v2-contracts.test.mjs scripts/check-memory-v2-health.test.mjs scripts/check-memory-v2-session-flow.test.mjs scripts/check-memory-v2-stack.test.mjs scripts/setup-memory-v2-pgvector-schema.test.mjs scripts/backfill-memory-v2-pgvector.test.mjs scripts/scaffold-memory-v2-backend.test.mjs scripts/smoke-memory-v2-pgvector.test.mjs scripts/smoke-memory-v2-qdrant.test.mjs scripts/smoke-memory-v2-external.test.mjs scripts/mock-memory-v2-services.test.mjs",
+    "test": "node --test api-core-retry.test.mjs auth.test.mjs asr-proxy.test.mjs billing.test.mjs billing-token-state.test.mjs billing-recharge.test.mjs wechat-pay.test.mjs wechat-oauth.test.mjs wechat-mp.test.mjs wechat-media.test.mjs wechat/image-generation-policy.test.mjs wechat/verify/generated-thumbnail.test.mjs schedule-intent.test.mjs schedule-reminder-worker.test.mjs capabilities.test.mjs policies.test.mjs server/portal-api-auth-middleware.test.mjs server/portal-config-routes.test.mjs server/portal-plaza-discovery-routes.test.mjs server/portal-runtime-routes.test.mjs server/portal-gateway-services-bootstrap.test.mjs chat-skills.test.mjs chat-intent-router.test.mjs chat-finish-sync.test.mjs chat-agent-run-gate.test.mjs conversation-display.test.mjs user-publish.test.mjs user-memory-profile.test.mjs skills-registry.test.mjs skill-runtime-policy.test.mjs excel-analyst.test.mjs agent-run-gateway.test.mjs agent-run-routes.test.mjs session-broker.test.mjs sse-event-taxonomy.test.mjs goosed-proxy-boundary.test.mjs agent-run-stream.test.mjs mindspace-h5-html-finish-guard.test.mjs admin-routes.test.mjs services/orchestrator/admin-config.test.mjs services/orchestrator/contracts.test.mjs services/orchestrator/checkpoint.test.mjs services/orchestrator/runtime.test.mjs services/orchestrator/app.test.mjs services/orchestrator/server.test.mjs services/orchestrator/shadow-dispatcher.test.mjs services/orchestrator/shadow-observer.test.mjs services/orchestrator/observability.test.mjs services/orchestrator/executor-gateway.test.mjs services/orchestrator/executor-job-store.test.mjs image-make-admin-config.test.mjs asset-gateway.test.mjs image-make-client.test.mjs mindspace-image-generation.test.mjs mindspace-image-generation-routes.test.mjs mindspace-image-review.test.mjs mindspace-run-public-html-scope.test.mjs direct-chat-service.test.mjs tool-gateway.test.mjs mindspace.test.mjs mindspace-scan.test.mjs mindspace-assets.test.mjs mindspace-local-runtime-services.test.mjs mindspace-local-server-adapter.test.mjs mindspace-public-asset-token.test.mjs mindspace-remote-server-adapter.test.mjs mindspace-server-adapter.test.mjs mindspace-pages.test.mjs mindspace-page-sync-service.test.mjs public-site-bases.test.mjs mindspace-html-download-links.test.mjs mindspace-long-image.test.mjs mindspace-page-purge.test.mjs mindspace-public-delivery.test.mjs mindspace-public-page-context.test.mjs mindspace-published-page-csp.test.mjs mindspace-published-script-localize.test.mjs agent-run-deliverable-check.test.mjs mindspace-public-route.test.mjs mindspace-publications.test.mjs mindspace-public-links.test.mjs mindspace-chat-save.test.mjs mindspace-chat-save-service.test.mjs mindspace-chat-docx-package.test.mjs mindspace-public-finish-sync.test.mjs mindspace-wechat-html-delivery.test.mjs mindspace-chat-context.test.mjs mindspace-canonical-url.test.mjs mindspace-conversation-package.test.mjs mindspace-conversation-package-artifact-service.test.mjs mindspace-conversation-package-audit.test.mjs mindspace-conversation-package-backfill.test.mjs mindspace-conversation-package-public-html.test.mjs mindspace-conversation-package-verify.test.mjs mindspace-conversation-package-registry.test.mjs mindspace-conversation-package-routes.test.mjs mindspace-conversation-package-store.test.mjs mindspace-conversation-schema.test.mjs mindspace-runtime-config.test.mjs mindspace-config.test.mjs mindspace-analytics.test.mjs mindspace-rybbit.test.mjs mindspace-service.test.mjs mindspace-storage-adapter.test.mjs mindspace-content-scan.test.mjs mindspace-html-localize.test.mjs mindspace-visual-editor.test.mjs mindspace-cleanup.test.mjs mindspace-thumbnails.test.mjs mindspace-workspace-thumbnails.test.mjs mindspace-workspace-sync.test.mjs mindspace-workspace-publication-delivery-service.test.mjs mindspace-workspace-tool-service.test.mjs mindspace-mcp-scoped-token.test.mjs mindspace-asset-preview.test.mjs mindspace-agent-jobs.test.mjs mindspace-agent-runner.test.mjs mindspace-sandbox-mcp.test.mjs mindspace-userdata-postgres.test.mjs postgres-user-data-space-service.test.mjs user-data-space-service.test.mjs page-data-routes.test.mjs page-access-policy.test.mjs page-access-visitor.test.mjs page-data-public-service.test.mjs page-data-integration.test.mjs page-data-log-store.test.mjs page-data-ops.test.mjs page-data-session-store.test.mjs page-data-browser-client.test.mjs page-data-policy-index.test.mjs message-stream.test.mjs mindspace-service/mindspace-rpc-server.test.mjs plaza-posts.test.mjs plaza-interactions.test.mjs plaza-algorithm.test.mjs plaza-seo.test.mjs plaza-ops.test.mjs user-auth.test.mjs llm-providers.test.mjs admin-guard.test.mjs user-feedback.test.mjs memory-v2.test.mjs memory-v2-admin-config.test.mjs memory-v2-lifecycle.test.mjs memory-v2-adapter-scaffold.test.mjs memory-v2-backend-contract.test.mjs memory-v2-health.test.mjs memory-v2-runtime.test.mjs memory-v2-plugin-backends.test.mjs memory-v2-pgvector.test.mjs memory-v2-pgvector-schema.test.mjs memory-v2-pgvector-backfill.test.mjs memory-v2-pgvector-smoke.test.mjs memory-v2-qdrant.test.mjs memory-v2-weaviate.test.mjs memory-v2-mem0.test.mjs memory-v2-letta.test.mjs memory-v2-external-adapters.test.mjs scripts/embed-memory-v2-local-hash.test.mjs scripts/check-memory-v2-app-canary.test.mjs scripts/check-memory-v2-config-gaps.test.mjs scripts/check-memory-v2-contracts.test.mjs scripts/check-memory-v2-health.test.mjs scripts/check-memory-v2-session-flow.test.mjs scripts/check-memory-v2-stack.test.mjs scripts/setup-memory-v2-pgvector-schema.test.mjs scripts/backfill-memory-v2-pgvector.test.mjs scripts/scaffold-memory-v2-backend.test.mjs scripts/smoke-memory-v2-pgvector.test.mjs scripts/smoke-memory-v2-qdrant.test.mjs scripts/smoke-memory-v2-external.test.mjs scripts/mock-memory-v2-services.test.mjs",
     "test:episodic-memory": "node --test episodic-memory.test.mjs direct-chat-service.test.mjs chat-intent-router.test.mjs",
     "test:deep-search": "node --test deep-search.test.mjs mindsearch.test.mjs",
     "test:image-review": "node --test mindspace-image-review.test.mjs mindspace-image-generation.test.mjs",