import type { PreviewConfig, PreviewDocument } from "./types.js";
export declare const PARTIAL_BANNERS: {
    readonly pptxFidelity: "Slide layout shows positioned text, shapes, and charts — 3D charts use embedded images or pseudo-3D SVG when data is unavailable.";
    readonly pptxAnimations: "Build steps and slide transitions play in simplified form; full OOXML animation timing is not replicated.";
    readonly cloudIframe: "Cloud embeds cannot detect iframe load failures (browser CORS). If the preview looks blank, use Try alternate viewer below or open the document in a new tab.";
    readonly splitDiffText: "Text-extraction diff — extracted plain text with line highlights, not overlays on the native viewer.";
    readonly splitDiffNativeDocx: "Native diff — inline word highlights on DOCX paragraphs. Alignment may differ from extracted text.";
    readonly splitDiffNativePdf: "Native diff — word-level highlights positioned from the PDF text layer.";
    readonly splitDiffNativePptx: "Native diff — slide text and positioned shapes/charts highlighted in the deck preview.";
    readonly splitDiffNativeOdt: "Native diff — word highlights and layout markers on ODT HTML blocks. Complex layout may differ from LibreOffice.";
    readonly splitDiffNativeSpreadsheet: "Native diff — row and cell highlights on the active worksheet table.";
    readonly splitDiffNativeOdp: "Native diff — slide text and positioned elements highlighted in the ODP deck preview.";
    readonly scannedPdf: "This PDF has little or no text layer — compare and search need OCR or a text-based export. Image-only pages cannot be diffed at word level.";
    readonly compareUnsupported: "Compare uses text extraction for documents. Matching image, video, or audio pairs use a metadata / side-by-side preview instead.";
    readonly compareHint: "Compare extracts plain text for Office/PDF/text. Upload matching image, video, or audio types for metadata comparison.";
    readonly legacyOffice: "Legacy Office formats use text or HTML extraction — not layout-faithful rendering. For full layout, use a public URL with the cloud viewer or configure server-side conversion (LibreOffice, Gotenberg, or your API via config.conversion).";
    readonly openDocument: "OpenDocument (.odt, .ods, .odp) preview uses in-browser HTML extraction — complex layouts, macros, and embedded objects may differ from LibreOffice. For exact output, export to PDF or DOCX.";
    readonly spreadsheetOds: "ODS preview uses the same multi-sheet tab UI as XLSX (SheetJS). Complex formulas, charts, and macros may not render.";
};
export type SplitDiffMode = "text" | "native-docx" | "native-pdf" | "native-pptx" | "native-odt" | "native-xlsx" | "native-odp";
export declare function isCompareSupportedDocument(doc: PreviewDocument): boolean;
export declare function isSearchSupportedDocument(doc: PreviewDocument): boolean;
export declare function getSplitDiffMode(left: PreviewDocument, right: PreviewDocument): SplitDiffMode;
export declare function splitDiffBannerMessage(mode: SplitDiffMode): string;
export declare function createPartialBanner(message: string, title?: string): HTMLElement;
export declare function prependPartialBanner(host: HTMLElement, message: string, title?: string): void;
/** Default true — set `config.office.showPartialPreviewBanner` to false to hide Office partial banners. */
export declare function isPartialPreviewBannerEnabled(config: PreviewConfig | undefined): boolean;
/** Default true — set `config.pdf.showAnnotateToolbar` to false to hide the PDF Annotate toolbar. */
export declare function isAnnotateToolbarEnabled(config: PreviewConfig | undefined): boolean;
/** Default true — set `config.pdf.showReviewBadge` to false to hide the review-state badge. */
export declare function isReviewBadgeEnabled(config: PreviewConfig | undefined): boolean;
export declare function appendPartialPreviewBannerIfEnabled(host: HTMLElement, config: PreviewConfig | undefined, message: string, title?: string): void;
export declare function prependPartialPreviewBannerIfEnabled(host: HTMLElement, config: PreviewConfig | undefined, message: string, title?: string): void;
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