Merge PDF Files
Combine multiple PDF files into one professional document. No uploads, no server storage, 100% private.
Files stay on your device
Merge PDF Online (Free, Private & Unlimited)
Need to combine your bank statements, academic records, or legal contracts? Most PDF tools upload your sensitive files to their cloud servers. OptiKit never does. Our PDF merging technology runs entirely inside your web browser using WebAssembly.
Why Online PDF Mergers are Risky
- Server Caching: Deleted files often persist on cloud backups.
- Unencrypted Transit: Some sites use basic HTTP, making PDFs vulnerable.
- Data Mining: Some tools scan PDFs for keywords and info.
- Password Exposure: Passwords can be briefly stored during processing.
The Professional PDF Merging Strategy
- Lossless Stitching: We combine page data streams without quality loss.
- Metadata Cleanup: We normalize headers for consistent documents.
- Infinite Batching: Merge multiple files locally in seconds.
- Local Sandbox: Your files never touch our servers.
Typical Use Cases
Legal Filings
Combine affidavits and evidence files into one.
Academic Records
Merge marksheets into one clean transcript.
Frequently Asked Questions
Is there a file size limit?
Merging happens locally in your browser. Modern devices handle files up to 100MB easily.
Will the quality decrease?
No. We use lossless merging technology. It simply combines page streams without any re-compression.