| PDF/A version | Conformance level | Class type | Severity |
|---|---|---|---|
| 1, 2, 3 | bua | Conformance | 5 |
The PDF/A document has data encoded with LZW compression.
- Use an existing PDF file that applies a filter, for example, /Filter/DCTDecode.
- Change to /Filter/LZWDecode. Note that the XRef must be updated if the lengths do not correspond.