Extend

Extend

Extend builds document processing infrastructure and open-source tools for document-heavy products.

26 items1 collectionextend.aiGitHub

CSV Viewer

A CSV and TSV viewer with parsing, upload, search, zoom, theme-aware grid rendering, and Glide Data Grid.

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Document Viewer Sidebar

Shared thumbnail sidebar behavior for document viewers, including viewer-width responsive overlay and inline modes.

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DOCX Editor

An experimental DOCX editor with a Word-style toolbar, page thumbnails, import, export, and live document mutation.

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DOCX Editor

A full DOCX editor block with a Word-style toolbar, page thumbnails, and export controls.

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DOCX Viewer

A DOCX viewer with upload, zoom, theme controls, and read-only rendering.

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E-Signature

A PDF signature review block with field overlays and signing actions.

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Excel Editor

A full Excel editor block with workbook upload, cell formatting, merge tools, sheets, zoom, and export controls.

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File System (Finder)

A macOS Finder-style file browser for flat object-store manifests with icon, list, column, and gallery views.

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File System (Finder)

A Finder-style file browser block that opens PDF, DOCX, PowerPoint, XLSX, and image files in large viewer dialogs.

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File Thumbnail

A compact file preview thumbnail shell for externally generated images, loading states, and fallback states.

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File Upload

A drag-and-drop file upload surface with accepted file type icons and a compact file list.

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Layout Blocks

A structured layout review panel with typed blocks and confidence cards.

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Layout Blocks

A structured layout review block with confidence cards and PDF region overlays.

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PDF Dropzone

A PDF-only upload dropzone that opens the dropped file in the shared PDF viewer.

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PDF Editor

A PDF editor with annotations, comments, redaction, form filling and design, signatures, rubber stamps, page organization, security, printing, and export.

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PDF Editor

A full PDF editor block with annotation, redaction, form, signature, stamp, page organization, security, print, and export tools.

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PDF Viewer

A PDF viewer with page virtualization, thumbnails, search, zoom, rotation, upload, and page overlay hooks.

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PowerPoint Viewer

A PowerPoint viewer with slide navigation, zoom, upload, download, custom scroll areas, and virtualized thumbnails.

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Excel Editor

An experimental XLSX editor with formula input, undo and redo, sheet controls, export, and live workbook mutation.

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Excel Viewer

An XLSX viewer with workbook loading, thumbnails, sheet tabs, upload, zoom, and theme controls.

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