Private In-Browser PDF Assembly, Splitting and Page Rotation
Manage business contracts, financial statements, academic papers, and tax documents with complete peace of mind. Our PDF suite merges, splits, rotates, and converts images to PDF directly in browser memory without sending a single byte to an external server.
Zero-Upload Document Security for Sensitive Records
Uploading sensitive PDF documents (containing bank statements, tax IDs, signed contracts, or medical records) to cloud PDF services is one of the most common vectors for unintended data exposure. Many third-party online PDF tools retain documents in temporary storage or utilize cloud workers that parse text and metadata.
OnDevice Tools processes PDF files using a pure client-side WebAssembly and JavaScript PDF engine (`pdf-lib`). The binary stream is parsed directly in browser memory, pages are rearranged, rotated, or merged, and the new PDF file is generated and saved directly to your downloads folder.
Full Structural Fidelity and Cross-Platform Compatibility
Our PDF utilities preserve vector graphics, fonts, embedded images, and document structures without rasterization artifacts. Because operations do not involve server round-trips, even multi-hundred-page documents can be re-indexed and exported in seconds.
Recommended Workflows
Merging Multi-Part Documents and Invoices
- Select two or more PDF files from your local storage in Merge PDF.
- Arrange the files in your preferred sequence.
- Click Merge to instantaneously bundle all pages into a unified document and download it locally.
Extracting and Splitting Key Sections
- Open your document in Split PDF and specify the desired page ranges or individual page numbers.
- Export the exact pages needed for client delivery or archival without exposing the rest of the file.
Frequently Asked Questions
Is there any file size limit for PDF processing?
There is no artificial server limit. Because processing uses your local device RAM, most modern computers and phones can comfortably handle PDFs with hundreds of pages.
Does splitting or rotating a PDF degrade text or image quality?
No. Operations modify document page trees and orientation metadata directly without re-compressing or rasterizing vector text or images.
Can I use these PDF tools while offline?
Yes. Once cached by our Service Worker, the PDF tools function fully without an internet connection.