PDF 验证工具
验证您的 PDF 文件的结构完整性、标准合规性和潜在问题。免费且匿名。
将PDF拖放至此
或点击浏览
最大50MB的PDF文件
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分析完成！
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即时结果
使用方法
1
上传您的PDF
拖放或点击选择文件
2
即时分析
几秒内提取元数据
3
查看详细结果
创建日期、编辑历史、AI检测等
PDF is Valid
Issues Found
Validation Results
Upload a PDF to see validation results here instantly.
✓ Structure integrity
✓ Security analysis
✓ Standards compliance
Detailed Results
Full ReportValidation Checks
Document Information
Title
Author
Created
Modified
Subject
Technical Details
Software
Producer
Encrypted
Tagged
Fonts
Images
Security & Integrity
JavaScript
Embedded Files
AI Content
What's Next?
Check Signatures
Verify if your PDF has digital signatures and check their validity.
Try itOptimize Size
Reduce your PDF file size without losing quality. Choose from multiple compression levels.
Try itAI Detection
Deep scan your PDF for signs of AI-generated content and LLM tool fingerprints.
Try it验证功能
结构验证
检查内部 PDF 结构和对象完整性
标准合规性
检查 PDF/A、PDF/X 和其他标准合规性
错误检测
识别损坏、丢失对象和潜在问题
Frequently Asked Questions
What does the PDF validator check?
Our validator checks PDF structure integrity, verifies the file is not corrupted, validates internal object references, checks for JavaScript or suspicious content, and provides details about the document's metadata, fonts, images, and security settings.
Is my PDF file stored after validation?
No. Your PDF is processed in memory and immediately discarded after validation. Only the extracted metadata is stored so you can review the results later via the share link.
What is the maximum file size?
You can validate PDF files up to 100 MB. For larger files, consider optimizing them first using our PDF optimizer tool.
Does it check for PDF/A compliance?
The validator identifies PDF version and checks for tagged content, embedded fonts, and other indicators of standards compliance. For a full PDF/A conformance report we recommend also checking with an industry-standard tool like veraPDF.
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