toeverything/AFFiNE · error · Error

PdfAdapter does not support importing blocks from PDF.

Error message

PdfAdapter does not support importing blocks from PDF.

What it means

Guard clause: PdfAdapter is export-only. toBlockSnapshot unconditionally throws because converting a PDF file back into an AFFiNE block snapshot is not implemented; any call to import PDF data as blocks fails by design.

Source

Thrown at blocksuite/affine/shared/src/adapters/pdf/pdf.ts:146

  }: FromSliceSnapshotPayload): Promise<
    FromSliceSnapshotResult<PdfAdapterFile>
  > {
    const content = await this._buildContent(snapshot.content, assets);
    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,

View on GitHub (pinned to b4c8548c09)

Solutions

1. PDF import is not supported by PdfAdapter; extract the text/images from the PDF first (e.g. with pdf.js) and import the extracted content via the Markdown or HTML adapter.
2. Check the adapter's supported import direction before calling fromBlockSnapshot; wrap the call in a capability check and show an 'import not supported' message to the user.

Example fix

// Guard before attempting a PDF-to-blocks import:
if (!pdfAdapter.fromBlockSnapshot) {
  notify('Importing blocks from PDF is not supported');
  return;
}

When it happens

Trigger: Thrown at blocksuite/affine/shared/src/adapters/pdf/pdf.ts:146 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/2f99b179c8fa5831. Report an issue: GitHub.