merge-pdf

Table of contents

• Table of contents
• Installation
• Description
• Code coverage
• Documentation
  • Concretions
    • mergePdf
• Motivation
• Acknowledgments
• Changelog
  • 2.0.0
  • 1.0.1
  • 1.0.0
• License

Installation

npm install @lillallol/merge-pdf

Description

A high level API to merge pdf.

Code coverage

Code coverage is around 90%.

Documentation

/**
 * @description
 * It merges the provided pdf to a single pdf.
 */
export declare const mergePdf: (parameters: mergePdfParameters) => Promise<mergePdfReturnType>;

export declare type mergePdfParameters = {
    /**
     * @description
     * Path to each pdf to be merged. Throws if any of the paths do not end with
     * `.pdf`.
     */
    input: string[];
    /**
     * @description
     * Path to save the merged pdf. Throws if the provided path does not end
     * with `.pdf` or a file with the same name can be accessed.
     */
    output?: string;
};

export declare type mergePdfReturnType = {
    /**
     * @description
     * The number of pages of each pdf that got merged.
     */
    numberOfPages: number[];
    mergedPdf: PDFDocument;
};

import type { PDFDocument } from "pdf-lib";

Motivation

I searched the npm registry for a module that :

• merges pdf
• uses only javascript (i.e. does not use code from other programming languages to merge the pdf)
• has high level API (the user does not need to make use of fs)

because I had to use in one of my own projects (scrap-it), and I could not find one, so I decided to create my own.

Acknowledgments

• I used the code from this module as a starting point.
• Without pdf-lib this module would not be possible.

Changelog

2.0.0

Breaking changes

The parameters of mergePdf are a now a single object, and its return value has a property that holds a reference to the merged pdf document. The latter makes the output path in the parameter object be an optional property.

Other

• Added generated documentation from ts-doc-gen-md to README.md.
• Added changelog to README.md.

1.0.1

Minor internal changes.

1.0.0

Published the package.

License

MIT