You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@tika.apache.org by "Tim Allison (Jira)" <ji...@apache.org> on 2020/03/12 12:10:00 UTC
[jira] [Commented] (TIKA-3070) Null bytes in extracted metadata
[ https://issues.apache.org/jira/browse/TIKA-3070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17057863#comment-17057863 ]
Tim Allison commented on TIKA-3070:
-----------------------------------
The null bytes are in the string as stored in the PDF.
{noformat}
/Producer <feff00410064006f00620065002000500053004c00200031002e0032006500200066006f0072002000430061006e006f006e0000>
{noformat}
If there's something in the PDF spec that says trailing null bytes should be ignored, we should open a ticket with PDFBox.
> Null bytes in extracted metadata
> --------------------------------
>
> Key: TIKA-3070
> URL: https://issues.apache.org/jira/browse/TIKA-3070
> Project: Tika
> Issue Type: Bug
> Components: server
> Affects Versions: 1.23
> Environment: Docker image: apache/tika:1.23
> Reporter: Carina
> Priority: Major
> Attachments: Technical_manual.pdf
>
>
> Both /rmeta/text and unpack/all return null bytes in metadata.
>
> Note *"pdf:docinfo:producer": "Adobe PSL 1.2e for Canon\u0000"*
>
> {code:java}
> $ 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"
> }]
> {code}
>
>
> Other example.
> Note fields "pdf:docinfo:creator_tool": "DigiPath\u0000", "pdf:docinfo:producer": "DigiPath\u0000" and "xmp:CreatorTool": "DigiPath\u0000"
>
> {code:java}
> [{
> "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"
> }]
> {code}
>
>
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)