PDF Hacker

Beware this is a WIP in its early stages!

The goal of this project is to have a lib that allows you to programmatically read from (and possibly write to) PDF files. It is meant as a low-level PDF file editor API.

Features

Basic PDF info:

const pdf = pdfhacker('test.pdf');
   
> console.dir(pdf.version);
{
  major: 1,
  minor: 5
}

Simple text replacement:

pdf.replace('foo', 'bar').saveTo('out.pdf');

Will replace all occurrences of foo with bar, finally saving to file out.pdf.

Chaining:

pdf
  .replace('foo', 'bar')
  .replace(/\d{3}/, '456')
  .saveTo('out.pdf');

Will replace all occurrences of foo with bar and will also replace all 123 with 456, finally saving to file out.pdf.

Display object tree:

> pdf.dumpTree();
Root
|- Catalog
   |- Page 1
   |- Page 2
   ...

Change specific objects:

pdf('/Root/Catalog/Page 1/Text')[0].val('first text object will be affected');
pdf('/Root/Catalog/Page 1/Text').val('all page 1 text objects will be affected');