Quick, simple booklets


PdfDroplet is a free, simple little tool which only does one thing: it takes your PDF and gives you a new one, with the pages combined and reordered, ready for saving & printing as booklets.

With PdfDroplet, you can make booklets of the following types:

  • Fold booklets
  • Calendar fold
  • Cut & stack

How It Works

While PdfDroplet can work with pages of any size, the following illustrates using pages laid out as A5 pages for printing on A4 paper. (A4 is twice the size of A5.)

  1. Prepare your book using a word processor or page layout application.
  2. Create a PDF file of the document using one of the many tools which do that, either from Adobe, Microsoft, or other source.
  3. Drop that PDF file onto PdfDroplet. Choose the kind of booklet you want, and the target paper size you’ll be printing on (e. g., A4). PdfDroplet creates a new PDF document, resizing and reordering the pages as needed. (Shown here printed as single-sided proofs.)
  4. Print and fold or cut, as needed for the kind of booklet you’re making.

System Requirements

Windows with .Net 4.0. In order to get a preview of the output inside of PdfDroplet, you will need a PDF viewer which integrates with Internet Explorer. Acrobat Reader, PdfXchange, and FoxIt all do this.

PdfDroplet Application

John Hatton: SIL International
Copyright: SIL International
License: MIT License

pdfSharp Engine
License: MIT License

iText PDF Engine
License: Affero General Public License


Requirements: .Net 4.6.1, and Adobe Reader, Windows 7 SP1, 8, or 10.

PdfDroplet 2.4.1002 for Windows MSI | 2.97 MB | 4 Feb 2021
PdfDroplet 2.4.1001 for Windows MSI | 2.96 MB | 4 Feb 2021
PdfDroplet 2.4.35 for Windows MSI | 2.95 MB | 16 Apr 2019
PdfDroplet 2.3.23 for Windows MSI | 2.51 MB | 31 Mar 2015

Older versions, documentation, and supporting files can be found here.

In order to get a preview of the output inside of PdfDroplet, you will need a PDF viewer that integrates with Internet Explorer (PdfDroplet uses Internet Explorer, internally). Acrobat Reader, PdfXchange, and FoxIt can all integrate with IE, so normally, if you have one of these installed, all will be well. However for some users, there is no reader configured to show PDFs in Internet Explorer. For Adobe Reader specifically: run Adobe Reader, then in Preferences/Internet, enable the Display PDF in browser option.


Support from other software users may be available through the SIL Language Software Community. This community will be growing to become the major source of software support.


If you are unable to obtain support through individual software support pages or the SIL Language Software Community, or have a general question about SIL language software, please contact us.