Change PDF Document Information
在浏览器中使用「Change PDF Document Information」完成文字与文档相关任务；输入内容和结果默认在设备上处理。
LOCAL PDF METADATA
Change standard PDF document information
Update selected Info fields without uploading your document. Fields you leave alone stay unchanged.
使用步骤
如何使用
- Choose one standard, unencrypted PDF from your device.
- Edit the document-information fields you want to change, or explicitly clear selected fields.
- Create and download the rewritten PDF.
Standard Info fields only
This tool updates the PDF Info dictionary fields Title, Author, Subject, Keywords, Creator, and Producer. It does not promise to update XMP metadata, embedded-file properties, custom metadata, or application-private metadata.
Local processing and clear limits
The selected PDF is read and rewritten locally with pdf-lib. It is never uploaded. Encrypted, signed, XFA, and damaged PDFs are refused because rewriting could invalidate or lose protected document data.
Selected changes only
Existing values are shown for review. A field changes only when you edit it or select Clear field; all other supported Info fields are retained. Keywords are entered as a comma-separated list.
常见问题
你可能还想知道
Which PDF metadata changes?
The tool changes only the standard document-information fields: title, author, subject, keywords, creator, and producer. It does not guarantee changes to XMP packets, attachments, custom fields, or vendor-specific metadata.
Can I remove a field?
Yes. Select Clear field for that item before creating the PDF. The field is removed from the standard Info dictionary.
Why is my PDF refused?
Password-protected, encrypted, signed, XFA, malformed, and unsupported PDFs are refused. Remove protection or use an unsigned standard PDF before editing document information.
Is my PDF uploaded?
No. Reading, metadata editing, previewing, and download happen locally in the browser.