PDFence

This library is used to encrypt pdf files on the fly. It uses muhammara.js underthehood to encrypt the pdf files.

Docs

You've access to four methods,

Buffer to Buffer

fromBufferToBuffer (buffer, passwordOptions)

First argument should be a buffer, it'll return a buffer of encrypted pdf.

File to Buffer

fromFileToBuffer (inputFilePath, passwordOptions)

First argument should be a filePath from which the plain PDF file is read, it'll return a buffer of encrypted pdf.

File to File

fromFileToFile (inputFilePath, outputFilePath, passwordOptions)

First argument should be a filePath from which the plain PDF file is read and second argument should be the filePath where the encrypted PDF will be written, it'll return outputFilePath.

Buffer to File

fromBufferTofile (buffer, outputFilePath, passwordOptions)

First argument should be a buffer and second argument should be the filePath where the encrypted PDF will be written it'll return outputFilePath.

passwordOptions

passwordOptions is a simple object which must look like this

{
    userPassword: '123', // required
    ownerPassword: '123', // optional
    userProtectionFlag: 4
}

Note

All the above mentioned methods will return false if something goes wrong.

Demo

Here's a quick demo on repl.it https://replit.com/@rvigneshw/PDFence-Demo#index.js