diff --git a/types/node-pdftk/index.d.ts b/types/node-pdftk/index.d.ts
new file mode 100644
index 0000000000..8d41bfb84b
--- /dev/null
+++ b/types/node-pdftk/index.d.ts
@@ -0,0 +1,259 @@
+// Type definitions for node-pdftk 2.1
+// Project: https://github.com/jjwilly16/node-pdftk#readme
+// Definitions by: Andrea Ascari <https://github.com/ascariandrea>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped/types/node-pdftk
+// Minimum TypeScript Version: 3.0
+
+/// <reference types="node" />
+
+export type Permission =
+    | 'Printing' // – Top Quality Printing
+    | 'DegradedPrintin' // – Lower Quality Printing
+    | 'ModifyContents' // – Also allows Assembly
+    | 'Assembly'
+    | 'CopyContents' // – Also allows ScreenReaders
+    | 'ScreenReaders'
+    | 'ModifyAnnotations' // – Also allows FillIn
+    | 'FillIn'
+    | 'AllFeatures'; // – Allows the user to perform all of the above, and top quality printing.
+
+export class PDFTK {
+    /**
+     * PdfTk constructor.
+     */
+    constructor(src: string[]);
+    /**
+     * Simple object check. Arrays not included.
+     */
+    static isObject(item: unknown): boolean;
+    /**
+     * Simple string check.
+     */
+    static isString(item: unknown): boolean;
+    /**
+     * Returns a buffer from a file.
+     */
+    static fileToBuffer(file: string | Buffer): Buffer;
+    /**
+     * Returns a buffer from a string.
+     */
+    static stringToBuffer(file: string | Buffer, encoding?: string): Buffer;
+    /**
+     * Sanitizes fdf input
+     */
+    static sanitizeForFdf(str: string): string;
+    /**
+     * Creates fdf file from JSON input.
+     */
+    static generateFdfFromJSON(data: object): Buffer;
+    /**
+     * Creates pdf info text file from JSON input.
+     */
+    static generateInfoFromJSON(data: object): Buffer;
+    /**
+     * Run the command.
+     */
+    output(writeFile: string, outputDest: string, needsOutput?: boolean): Promise<string>;
+    output(writeFile: string): Promise<Buffer>;
+    /**
+     * Assembles ("concatenate") pages from input PDFs to create a new PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-cat}
+     */
+    cat(command: string | string[]): this;
+    /**
+     * Collates pages from input PDF to create new PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-shuffle}
+     */
+    shuffle(command: string | string[]): this;
+    /**
+     * Splits a single PDF into individual pages.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-burst}
+     */
+    burst(outputOptions: string): Promise<string>;
+    burst(): Promise<Buffer>;
+    /**
+     * Takes a single input PDF and rotates just the specified pages.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-rotate}
+     */
+    rotate(command: string | string[]): this;
+    /**
+     * Generate fdf file from input PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-generate-fdf}
+     */
+    generateFdf(): this;
+    /**
+     * Fill a PDF form from JSON data.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-fill-form}
+     */
+    fillForm(payload: object): this;
+    /**
+     * Applies a PDF watermark to the background of a single PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-background}
+     */
+    background(file: string | Buffer): this;
+    /**
+     * Same as the background operation, but applies each page of the background PDF to the corresponding page of the input PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-multibackground}
+     */
+    multiBackground(file: string | Buffer): this;
+    /**
+     * This behaves just like the background operation except it overlays the stamp PDF page on top of the input PDF document’s pages.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-stamp}
+     */
+    stamp(file: string | Buffer): this;
+    /**
+     * Same as the stamp operation, but applies each page of the stamp PDF to the corresponding page of the input PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-multistamp}
+     */
+    multiStamp(file: string | Buffer): this;
+    /**
+     * Merge PDF form fields and their data.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-flatten}
+     */
+
+    /**
+     * Outputs PDF bookmarks and metadata.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-dump-data}
+     */
+    dumpData(): this;
+    /**
+     * Outputs PDF bookmarks and metadata with utf-8 encoding.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-dump-data-utf8}
+     */
+    dumpDataUtf8(): this;
+    /**
+     * Outputs form field statistics.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-dump-data-fields}
+     */
+    dumpDataFields(): this;
+    /**
+     * Outputs form field statistics with utf-8 encoding.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-dump-data-fields-utf8}
+     */
+    dumpDataFieldsUtf8(): this;
+    /**
+     * Outputs PDF annotation information.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-dump-data-annots}
+     */
+    dumpDataAnnots(): this;
+    /**
+     * Update the bookmarks and metadata of a PDF with utf-8 encoding.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-update-info}
+     */
+    updateInfo(data: object): this;
+    /**
+     * Update the bookmarks and metadata of a PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-update-info-utf8}
+     */
+    updateInfoUtf8(data: object): this;
+    /**
+     * Attach files to PDF.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-attach} for more information.
+     */
+    attachFiles(files: string | string[]): this;
+    /**
+     * Unpack files into an output directory. This method is not chainable, and hereby does not require
+     * the output method afterwards.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-unpack} for more information.
+     */
+    unpackFiles(outputDir: string): Promise<string>;
+    /**
+     * Used with the {@link attachFiles} method to attach to a specific page.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-attach}
+     */
+    toPage(pageNo: number): this;
+    /**
+     * Set Adobe Reader to generate new field appearances.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-need-appearances}
+     */
+    /**
+     * Merge PDF form fields and their data.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-flatten}
+     */
+    flatten(): this;
+    needAppearances(): this;
+    /**
+     * Restore page sream compression.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-compress}
+     */
+    compress(): this;
+    /**
+     * Remove page stream compression.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-compress}
+     */
+    uncompress(): this;
+    /**
+     * Keep first ID when combining files.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-keep-id}
+     */
+    keepFirstId(): this;
+    /**
+     * Keep final ID when combining pages.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-keep-id}
+     */
+    keepFinalId(): this;
+    /**
+     * Drop all XFA data.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-drop-xfa}
+     */
+    dropXfa(): this;
+    /**
+     * Set the verbose option.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-verbose}
+     */
+    verbose(): this;
+    /**
+     * Never prompt when errors occur.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-ask}
+     */
+    dontAsk(): this;
+    /**
+     * Always prompt when errors occur.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-ask}
+     */
+    doAsk(): this;
+    /**
+     * Set the input password.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-input-pw}
+     */
+    inputPw(password: string): this;
+    /**
+     * Set the user password.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-enc-user-pw}
+     */
+    userPw(password: string): this;
+    /**
+     * Set the owner password.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-enc-owner-pw}
+     */
+    ownerPw(password: string): this;
+    /**
+     * Set permissions for a PDF. By not passing in the "perms" parameter, you are disabling all features.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-enc-perms}
+     */
+    allow(perms: Permission | Permission[]): this;
+    /**
+     * Set 40 bit encryption.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-enc-strength}
+     */
+    encrypt40Bit(): this;
+    /**
+     * Set 128 bit encryption.
+     * @see {@link https://www.pdflabs.com/docs/pdftk-man-page/#dest-output-enc-strength}
+     */
+    encrypt128Bit(): this;
+    /**
+     * Allows the plugin to ignore the PDFTK warnings. Useful with huge PDF files.
+     */
+    ignoreWarnings(): this;
+}
+
+export interface ConfigureOptions {
+    bin: string;
+    Promise: PromiseConstructor;
+    ignoreWarnings: true;
+    tempDir: string;
+}
+
+export function input(file: string): PDFTK;
+export function configure(opts: ConfigureOptions): void;
diff --git a/types/node-pdftk/node-pdftk-tests.ts b/types/node-pdftk/node-pdftk-tests.ts
new file mode 100644
index 0000000000..c1fdd85d3f
--- /dev/null
+++ b/types/node-pdftk/node-pdftk-tests.ts
@@ -0,0 +1,17 @@
+import * as PDFTK from 'node-pdftk';
+
+PDFTK.configure({
+    bin: '/usr/local/bin/pdftk',
+    Promise,
+    ignoreWarnings: true,
+    tempDir: './pdftk',
+});
+
+const pdftk = PDFTK.input('file'); // $ExpectType PDFTK
+
+pdftk.allow(['FillIn']).attachFiles(['./file1.pdf', './file2.pdf']); // $ExpectType PDFTK
+
+pdftk.allow(['FillIn']).compress().output('./fileoutput.pdf'); // $ExpectType Promise<Buffer>
+pdftk.allow(['FillIn']).compress().output('./fileoutput.pdf', './destination/folder'); // $ExpectType Promise<string>
+PDFTK.input('file').flatten().ignoreWarnings().inputPw('password').burst('page_%02d.pdf'); // $ExpectType Promise<string>
+PDFTK.input('file').flatten().ignoreWarnings().inputPw('password').burst(); // $ExpectType Promise<Buffer>
diff --git a/types/node-pdftk/tsconfig.json b/types/node-pdftk/tsconfig.json
new file mode 100644
index 0000000000..d7ca143351
--- /dev/null
+++ b/types/node-pdftk/tsconfig.json
@@ -0,0 +1,16 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": ["../"],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts", "node-pdftk-tests.ts"]
+}
diff --git a/types/node-pdftk/tslint.json b/types/node-pdftk/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/node-pdftk/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }