Trình phân tích PDF
Miễn phí·Không cần đăng ký·Tệp của bạn không bao giờ rời thiết bị
How to inspect a PDF in 3 steps
X-ray any document: what's inside, how it's built, and whether it's carrying anything unusual.
Upload the PDF
Drop the file in the box above. Parsing happens locally, in seconds.
Read the report
Page count, dimensions, version, encryption, fonts, images, and structural statistics — all on screen.
Act on what you find
Fix oversized scans, spot unembedded fonts, or verify encryption — with the right sibling tool.
Why analyze PDFs with AmiPDF
Diagnose before you fix — or before you trust.
Riêng tư từ thiết kế
Xử lý diễn ra hoàn toàn trong trình duyệt của bạn. Không tải lên, lưu trữ hay chia sẻ bất cứ thứ gì — tuyệt đối.
Không đăng ký, không hình mờ
Không tài khoản, không email, không giới hạn. Kết quả đầu ra y hệt bản gốc.
Security at a glance
See instantly whether a file is encrypted, and what its structure contains — useful before opening documents from unknown sources.
Chạy trên mọi thiết bị
Trải nghiệm nhanh như nhau trên Windows, Mac, Linux, Android và iOS — không cần cài.
When to analyze a PDF
Debugging a file that won't print, checking whether fonts will render on another machine, understanding why a “small” document is 80 MB, or inspecting a download before opening it. Analysis is the first step of informed PDF work.
The file is parsed in your browser and never uploaded.
Analyze PDFs on any platform
AmiPDF chạy trong trình duyệt — không cài đặt, không cấu hình, không cập nhật.
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
What exactly does the report include?
Page count and per-page dimensions, PDF version, encryption status, font inventory with embedding info, image count, and object-level statistics.
Does the analyzer produce a file?
No — it's read-only. The findings appear as a report on the page; your original file is never modified.
Can it tell me why my PDF is so large?
Yes, directionally — a large image count or many embedded font programs are the usual suspects, and both show in the report.
Does it detect malware?
No — it inspects structure, not threat signatures. Treat it as an X-ray, not an antivirus. For untrusted files, use a real scanner.
Can I analyze encrypted PDFs?
The report shows encryption status and metadata visible without the password. Deep analysis needs the unlocked file.
Is my document uploaded for analysis?
No. Parsing runs entirely in your browser.
Công cụ PDF liên quan
Tiếp tục — mọi thứ bạn cần để làm việc với PDF, tất cả miễn phí và chạy cục bộ.