Merging multiple PDF documents is a daily task in corporate environments. Sharing files containing financial figures, contracts, or credentials online poses massive security risks. Fortunately, client-side PDF merging allows compiling these documents securely.
How Client-Side Merging Works
Using standard PDF utilities like pdf-lib loaded in-browser, the compilation script reads the binary ArrayBuffer data of each file. It creates a brand-new PDF, copies pages structurally from the source documents, and compiles the final file in-memory. The resulting file triggers a direct local download.
Steps to Merge Safely
- Choose a tool that runs entirely client-side.
- Upload the files and drag the page thumbnails to rearrange them.
- Click Merge to compile the document instantly.