Some result searches for the same document can show text with replacement characters (�)
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Issue
- A text document (such as a PDF) has been added to the document library.
- Searching by a piece of text in the file, the result includes an excerpt with regular text including the search string.
- Searching by a piece of text only in the title, the result includes an excerpt with many replacement characters (�).
Environment
- Liferay DXP 7.3, 7.4
- Quarterly Release 2023.Q3-2024.Q4
Resolution
- When a document is added to the document library, the title, metadata and text are indexed (up to the value established in the property
dl.file.indexing.max.size).
- When searching, the result includes an excerpt of the text, including the searched string, if found, or starting from the beginning, if not.
- If the document has a mix of encoding systems (e.g., UTF-8 and Latin-1), all the byte sequences that can't be interpreted in UTF-8 will be substituted by the replacement character (�).
- To avoid this behavior, review the document and make sure the encoding is uniform.
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