PDF Spec Checker
Analyze PDF internal structure and version conformance.
PDF Upload
Check compliance with submission specs
Privacy Proof
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로컬 처리 중이면 요청 수가 0에 머뭅니다.
✨ Convert
- Header check
- Object count
- Font list
- Image tally
- Structure tree
💡 Info
**Debugging** For developers needing to know PDF versions (1.4, 1.7, etc).
**Optimization** Find out why your PDF is so huge (e.g. too many fonts).
🚀 Usage
- 1
Upload PDF.
- 2
View analysis report.
- 3
Check constraints.
Overview
This tool is designed for fast, local processing with no server upload. It focuses on clarity and repeatable results.
When to use it
- • When you need a quick result without installing software.
- • When you must keep files on your device for privacy.
- • When you want a predictable output for reuse or sharing.
How it works
Your file is processed in the browser. The workflow is deterministic and optimized for common document patterns.
Best practices
- • Start with a small sample to confirm output expectations.
- • Keep file names simple to avoid OS-specific edge cases.
- • If results look off, try the tool again after a page refresh.
Common mistakes
- • Uploading encrypted or corrupted files without preparing them first.
- • Assuming a tool will fix formatting issues outside its scope.
- • Closing the tab before the download completes.
⚠️ Limits
- • Technical output
- • Checks structure, not visual glitches
📥 Inputs & Outputs
Inputs
- PDF File Formats: pdf
Outputs
- Report Formats: n/a
🔒 Privacy & Security
- • Analysis is local.
🛠 Troubleshooting
Too technical?
This is a power user tool.
Error reading?
File is likely corrupt.
Fix it?
Use PDF Repair.
❓ FAQ
Does it repair?
No, it only analyzes.
Free?
Yes.
Secure?
Local.
Version?
Checks PDF 1.0 - 2.0.
Font info?
Lists embedded fonts.
Mobile?
Yes.