100% Private (Local Processing)
Compare PDF Files Online
Compare file sizes and page counts between PDF documents.
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How to use Compare PDF
- 1
Upload your PDF document.
- 2
Configure adjustments: clean metadata, flatten fields, select page sizes, or set cropping coordinates.
- 3
Click the conversion action button.
- 4
Download the processed PDF file.
Capabilities
- Flattens interactive form values permanently
- Wipes identifying metadata attributes instantly
- Applies crop margins to page mediaBox sizes
- Standardizes page dimensions to Letter/A4
Privacy & Processing
This tool operates in a sandbox directly inside your web browser. All parsing, processing, and downloads are rendered locally. Your file size, metadata, and contents never cross the network. It works completely offline.
Frequently Asked Questions
What does flattening a PDF do?
It turns form fields and text areas into static elements on the page, locking user updates.