[TIKA-3070] Null bytes in extracted metadata

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.23
• Component/s: server

Environment

Docker image: apache/tika:1.23

• Assignee: Unassigned
• Reporter: Carina Antunes
• Created: 12/Mar/20 11:33
• Updated: 12/Mar/20 12:09

Description

Both /rmeta/text and unpack/all return null bytes in metadata. 

 

Note "pdf:docinfo:producer": "Adobe PSL 1.2e for Canon\u0000"

 

$ curl -T Technical_manual.pdf http://localhost:9998/rmeta/text 

[{
  "Content-Type": "application/pdf",
  "Creation-Date": "2018-08-21T09:40:33Z",
  "X-Parsed-By": [
    "org.apache.tika.parser.DefaultParser",
    "org.apache.tika.parser.pdf.PDFParser"
  ],
  "X-TIKA:embedded_depth": "0",
  "X-TIKA:parse_time_millis": "42",
  "access_permission:assemble_document": "true",
  "access_permission:can_modify": "true",
  "access_permission:can_print": "true",
  "access_permission:can_print_degraded": "true",
  "access_permission:extract_content": "true",
  "access_permission:extract_for_accessibility": "true",
  "access_permission:fill_in_form": "true",
  "access_permission:modify_annotations": "true",
  "dc:format": "application/pdf; version\u003d1.4",
  "dcterms:created": "2018-08-21T09:40:33Z",
  "meta:creation-date": "2018-08-21T09:40:33Z",
  "pdf:PDFVersion": "1.4",
  "pdf:charsPerPage": [
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0"
  ],
  "pdf:docinfo:created": "2018-08-21T09:40:33Z",
  "pdf:docinfo:creator_tool": "Canon iR-ADV C5235  PDF",
  "pdf:docinfo:producer": "Adobe PSL 1.2e for Canon\u0000",
  "pdf:encrypted": "false",
  "pdf:hasXFA": "false",
  "pdf:hasXMP": "true",
  "pdf:unmappedUnicodeCharsPerPage": [
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0"
  ],
  "xmp:CreatorTool": "Canon iR-ADV C5235  PDF",
  "xmpMM:DocumentID": "uuid:03e07b5b-0000-f481-39c4-e94700000000",
  "xmpTPg:NPages": "31"
}]

 

 

Other example. 

Note fields "pdf:docinfo:creator_tool": "DigiPath\u0000", "pdf:docinfo:producer": "DigiPath\u0000" and "xmp:CreatorTool": "DigiPath\u0000"

 

[{
  "Content-Type": "application/pdf",
  "Last-Modified": "2006-03-02T08:53:15Z",
  "Last-Save-Date": "2006-03-02T08:53:15Z",
  "X-Parsed-By": [
    "org.apache.tika.parser.DefaultParser",
    "org.apache.tika.parser.pdf.PDFParser"
  ],
  "X-TIKA:embedded_depth": "0",
  "X-TIKA:parse_time_millis": "96",
  "access_permission:assemble_document": "true",
  "access_permission:can_modify": "true",
  "access_permission:can_print": "true",
  "access_permission:can_print_degraded": "true",
  "access_permission:extract_content": "true",
  "access_permission:extract_for_accessibility": "true",
  "access_permission:fill_in_form": "true",
  "access_permission:modify_annotations": "true",
  "date": "2006-03-02T08:53:15Z",
  "dc:format": "application/pdf; version\u003d1.3",
  "dcterms:modified": "2006-03-02T08:53:15Z",
  "meta:save-date": "2006-03-02T08:53:15Z",
  "modified": "2006-03-02T08:53:15Z",
  "pdf:PDFVersion": "1.3",
  "pdf:charsPerPage": [
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0"
  ],
  "pdf:docinfo:creator_tool": "DigiPath\u0000",
  "pdf:docinfo:modified": "2006-03-02T08:53:15Z",
  "pdf:docinfo:producer": "DigiPath\u0000",
  "pdf:encrypted": "false",
  "pdf:hasXFA": "false",
  "pdf:hasXMP": "false",
  "pdf:unmappedUnicodeCharsPerPage": [
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0",
    "0"
  ],
  "xmp:CreatorTool": "DigiPath\u0000",
  "xmpTPg:NPages": "14"
}]