Neoclassical Programming Multitude
Ready to take your JavaScript development to the next level? Meet npm Enterprise - the ultimate in enterprise JavaScript. Learn more »


4.1.0 • Public • Published

PDF Fill Form (pdf-fill-form) is Node.js native C++ library for filling PDF forms. Created PDF file is returned back as Node.js Buffer object for further processing or saving - whole process is done in memory. Library offers methods to return filled PDF also as PDF file where pages are converted to images.

Libary uses internally Poppler QT5 for PDF form reading and filling. Cairo is used for PDF creation from page images (when parameter { "save": "imgpdf" } is used).


  • NEW version 4.1.0 : Support for Node 10 (by @florianbepunkt)

  • Version 4.0.0: Added feature allowing for parallelization of the imgpdf feature, also allows for settings scale and whether antialiasing should be used (by Albert Astals Cid @tsdgeos).

  • Version 3.0.0: Updated QT library to version 5 (by Rob Davarnia @robdvr).

  • Version 2.0.0: Updated nan library to version 2.4.0. Now pdf-fill-form works also with all latest node.js versions. Tested using 0.12.0, v4.4.7, v5.2.0, v6.3.0, v6.8.0, v6.9.1

  • Supports reading and writing the following PDF form field types: TextField, Checkbox, Radio button

  • You can write following files:

    • PDF
    • PDF where pages are converted to images
  • All the work is done in memory - no temporary files created

  • Results are returned in Node.js Buffer -object

  • Not using the PDFtk -executable - instead we use the Poppler library


Using promises

var pdfFillForm = require('pdf-fill-form');'test.pdf')
.then(function(result) {
}, function(err) {
var pdfFillForm = require('pdf-fill-form');
var fs = require('fs');
pdfFillForm.write('test.pdf', { "myField": "myField fill value" }, { "save": "pdf", 'cores': 4, 'scale': 0.2, 'antialias': true } )
.then(function(result) {
    fs.writeFile("test123.pdf", result, function(err) {
        if(err) {
        return console.log(err);
        console.log("The file was saved!");
}, function(err) {

Using callbacks

To read all form fields:

var pdfFillForm = require('pdf-fill-form');
var pdfFields = pdfFillForm.readSync('test.pdf');

To write form fields (synchronous) to PDF:

var pdfFillForm = require('pdf-fill-form');
var fs = require('fs');
// Use here the field names you got from read
var pdf = pdfFillForm.writeSync('test.pdf', 
    { "myField": "myField fill value" }, { "save": "pdf" } );
fs.writeFileSync('filled_test.pdf', pdf);

To write form fields (aynchronous) to PDF:

var pdfFillForm = require('pdf-fill-form');
var fs = require('fs');
// Use here the field names you got from read
    { "myField": "myField fill value" }, { "save": "pdf" }, 
    function(err, pdf) {
        fs.writeFile("filled_test.pdf", pdf, function(err){});

To write form fields to PDF where pages are converted to images:

Use parameter { "save": "imgpdf" }

Notes about using radio buttons (@mttchrry)

Just set the radio button field Value to the caption of the item you want to select.

For example if you have a radio button for gender called "Gender1" with options captioned as "Male" or "Female" then passing in the field {"Gender1": "Male"} will select the male radio button, as expected.



Preferable method to install library dependencies is via Homebrew

$ brew install qt5 cairo poppler --with-qt5

After dependencies are successfully installed, you can install the library:

$ npm install pdf-fill-form

Homebrew users who get error regarding xcb-shm
The fix is to add this to your bash profile / environment: export PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig

If you still run into issues, or had an existing qt installed try to force link it:

brew linkapps qt5
brew link --force qt5

Linux - Ubuntu (trusty)

$ sudo apt-get install libpoppler-qt5-dev libcairo2-dev
$ npm install pdf-fill-form

Linux - Debian (jessie)

To be sure to have the required packages, re-synchronize the package index files from their sources :

$ sudo apt-get update

Then install packages :

$ sudo apt-get install libcairo2-dev libpoppler-qt5-dev 
$ npm install pdf-fill-form

I mostly recommand to install this package to have better support with fonts :

$ sudo apt-get install poppler-data


  • Tests
  • Refactoring
  • Support for other form field types than CheckBox, Radio button and TextField

Changelog (from 24.5.2017 ->)

v3.2.0 (24.5.2017)

  • Support for radio buttons (by Matt Cherry @mttchrry)

v3.3.0 (14.12.2017)

  • #49 Set radio button "value" to the poppler button state (by Mihai Saru @MitzaCoder)

v4.0.0 (14.12.2017)

  • #45 Set radio button "value" to the poppler button state (by Albert Astals Cid @tsdgeos)



  • Ethan Goldblum
  • Tyler Iguchi
  • Rob Davarnia
  • Fabrice Ongenae
  • Juwan Yoo
  • Andreas Gruenbacher
  • Andrei Dracea
  • Emil Sedgh
  • Matt Cherry
  • Mario Ferreira
  • Mihai Saru @MitzaCoder
  • Albert Astals Cid @tsdgeos
  • Florian Bischoff @florianbepunkt



Poppler has GPL license. Cairo has LGPL.


npm i pdf-fill-form

Downloadsweekly downloads









last publish


  • avatar
Report a vulnerability