Today I recommend a free open source program, bookbinder, with it, you can easily create a bindable book from a PDF document.

Bookbinder is a program that will convert a PDF document into signatures suitable for traditional bookbinding.
While there are a lot of programs on the net that will create a single booklet from a small document, I couldn’t find one that would turn a 500 page novel or textbook into several signatures. So I had to write one.

The chosen PDF is split into chunks, the page order of each chunk is rearranged, then the pages are placed two to a page in a new PDF. After printing and folding, each bundle of sheets should be a correctly ordered signature, ready for binding.

Something like this…

The program does steps 1 and 2. You have to do the rest to create a finished book.

The gui screenshot is like this,

and it support 3 formats, booklet, perfect bound, signatures.

If you like it, please visit here for details and download it.

Here is a Windows command line version PdfSigner with TimeStamp(TSA) support,

Usage pdfsigner InPdf OutPdf Pkcs12KeyStore Pkcs12KeyStorePassword

because It is a demo application, so the TSA server only supports http://tss.pki.gva.es:8318/tsa
If you have interest, please download it here,pdfsigner(4.9M)

PdfCrypt is a windows 32 console/command line version PDF encrypt & decrypt software, supports standard 48 bits, 128 bits, AES-128 bits encryption, and decryption. And first of all,it is free.

Download now(1.84M).

If you need java source code, linux stand alone version, or .net version, please let me know.

It bases on modified version iText 1.5.4 and gcj 3.4.2, compressed with UPX 3.03.

Here is the usage manual,

usage:
pdfcrypt

Where:
= encrypt
[info pairs]

= decrypt

permissions is 8 digit long 0 or 1. Each digit has a particular security function:

AllowPrinting
AllowModifyContents
AllowCopy
AllowModifyAnnotations
AllowFillIn (128 bit only)
AllowScreenReaders (128 bit only)
AllowAssembly (128 bit only)
AllowDegradedPrinting (128 bit only)

Example permissions to copy and print would be: 10100000

Some example,
pdfcrypt encrypt in.pdf out.pdf owner_pwd user_pwd 10100000 AES
pdfcrypt encrypt in.pdf out.pdf owner_pwd “” 11100000 128 //128 bits encrypt with owner password
pdfcrypt encrypt in.pdf out.pdf “” user_pwd 11100000 128 //18 bits encrypt with user password
pdfcrypt decrypt in.pdf out.pdf owner_pwd
if the owner password is empty, please use it in this way,
pdfcrypt decrypt in.pdf out.pdf “”
It means if the pdf only encrypted with user password, you can easily remove the password without the password.
If you forget the owner password, you can try pdfcrack to get it and use PdfCrypt to remove the owner password