In-Browser PDF & Document Conversion Tools
Merge, split, compress, and convert PDF documents and photos locally. Airtight document privacy — sensitive contracts, financial statements, and IDs never leave your device.
Available PDF Tools (27)
View All 48 Tools →Confidential Document Assembly & Optimization
Uploading confidential PDF agreements or medical records to cloud converters introduces severe compliance liabilities. MediaConvertKit utilizes Mozilla’s client-side PDF.js engine and pure JavaScript pdf-lib to manipulate documents in browser memory. Pages can be converted to high-DPI images, assembled from photos, or compressed without server transmission.
Why Use MediaConvertKit for PDF Tools?
| Criteria | MediaConvertKit | CloudConvert / Zamzar / TinyPNG |
|---|---|---|
| File Privacy | 100% In-Browser (Zero Upload) | Uploaded to Remote Cloud Server |
| Processing Speed | Instant Local Hardware Speed | Queued & Limited by Network Upload |
| File Size Limits | No Arbitrary Limits (Uses RAM) | Strict Paywalls (100MB Caps) |
| Cost & Subscription | 100% Free Forever | Paid Credits & Subscriptions |
Frequently Asked Questions — PDF Tools
Are my confidential PDF agreements safe?
100% safe. Files never touch our servers or any cloud infrastructure. All document processing takes place inside your browser tab.
Can I combine multiple photos into a single PDF?
Yes, our JPG to PDF, Image to PDF, and HEIC to PDF tools assemble multiple pictures into a neat, standardized multi-page document.
Is there a page count limit for PDF splitting or merging?
No arbitrary limits. You can merge or split large multi-page PDF documents locally.