toeverything/AFFiNE · error · Error

PdfAdapter does not support importing docs from PDF.

Error message

PdfAdapter does not support importing docs from PDF.

What it means

PdfAdapter implements only export (doc-to-PDF); toDocSnapshot is an intentionally unimplemented adapter method that throws because importing a BlockSuite doc from a PDF file is not supported. It fires whenever a caller routes a ToDocSnapshotPayload<PdfAdapterFile> into this adapter.

Source

Thrown at blocksuite/affine/shared/src/adapters/pdf/pdf.ts:150

    const definition = this._createDocDefinition(undefined, content);
    const blob = await this._createPdfBlob(definition);
    return {
      file: {
        blob,
        fileName: 'slice.pdf',
      },
      assetsIds: [],
    };
  }

  toBlockSnapshot(
    _payload: ToBlockSnapshotPayload<PdfAdapterFile>
  ): BlockSnapshot {
    throw new Error('PdfAdapter does not support importing blocks from PDF.');
  }

  toDocSnapshot(_payload: ToDocSnapshotPayload<PdfAdapterFile>): DocSnapshot {
    throw new Error('PdfAdapter does not support importing docs from PDF.');
  }

  toSliceSnapshot(
    _payload: ToSliceSnapshotPayload<PdfAdapterFile>
  ): SliceSnapshot | null {
    throw new Error('PdfAdapter does not support importing slices from PDF.');
  }

  /**
   * Get the pdfmake document definition (for testing purposes)
   */
  async getDocDefinition(
    blocks: BlockSnapshot[],
    title?: string,
    assets?: FromDocSnapshotPayload['assets']
  ): Promise<TDocumentDefinitions> {
    const content = await this._buildContent(blocks, assets);
    return this._createDocDefinition(title, content);

View on GitHub (pinned to b4c8548c09)

Solutions

1. PdfAdapter only supports exporting docs to PDF. To import, convert the PDF to Markdown/HTML with an external tool first, then use the MarkdownAdapter or NotionHtmlAdapter.
2. Surface a clear UI message that PDF import is unsupported and offer PDF export instead.

Example fix

// Only export docs to PDF:
const pdfBuffer = await pdfAdapter.fromDocSnapshot({ snapshot, assets });
// Do not call pdfAdapter.toDocSnapshot — PDF import is not implemented.

When it happens

Trigger: Thrown at blocksuite/affine/shared/src/adapters/pdf/pdf.ts:150 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of toeverything/AFFiNE@b4c8548c09 (2026-08-18). Data as JSON: /api/errors/326c4ceade950d14. Report an issue: GitHub.