PDF Chain!

PDFsam Basic is a free, open source, multi-platform software designed to:

Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit, and sign PDF files at your desk or on the go.

PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use. It is a easy to use tool to collate (merge), split, encrypt, decrypt, stamp and rotate (only 90°, 180° or 270°) pdf documents. Portable Version: http://portableapps.com/apps/office/pdftk_builder_portable .

PDF-Shuffler is a small python-gtk application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface. It is a frontend for python-pyPdf.

With PDFill you can create, fill, delete and submit PDF form fields; insert new formatted text, check, image, hyperlink, whiteout, highlight, drawing, comment and annotation anywhere in the document; save, print or email the filled and password-protected PDF; save and resume your filling anytime. PDF Writer is Freeware. PDF Editor is not.

You can reorder, rotate, and remove pages, export images from a document, edit the title, subject, author, and keywords, and combine documents via drag and drop.

jPDF Tweak is a Swiss Army Knife GUI application for PDF documents: combine, split, rotate, reorder (n-up, booklet), watermark, edit bookmarks/fileinfo/pagetransition, compress, encrypt, decrypt, sign, repair, edit attachments and more.

PDF Shaper is a collection of free PDF tools, which allows you to merge, split, encrypt and decrypt PDFs, convert images to PDF, convert PDF to Word RTF or images, extract text and images from PDF. Program has easy-to-use user interface, supports Unicode characters and batch processing.

UnityPDF lets you merge, split, divide, rotate, protect PDF files and more. All features are easy to use and do not require complex skills.

PDF Candy is a free online PDF toolset of 24 services for successful processing of PDF files. The service is completely free to be used (no accounts, fees or subscriptions) and secure. There are no ads on the website. The output files can be saved directly from the website. With the help of PDF Candy the users can: 1) split PDFs; 2) merge PDF files; 3) compress PDFs;4) unlock PDFs; 5) protect PDF documents with passwords;6) rotate pages of PDFs;7) add watermarks to documents of PDF format; 8) delete pages from PDF files; 9) convert PDF to Word; 10) convert Word to PDF;11) convert PDF to JPG;12) convert JPG to PDF;13) convert EPUB to PDF;14) convert MOBI to PDF;15) convert FB2 to PDF;16) convert PNG to PDF;17) convert TIFF to PDF;18) convert BMP to PDF;19) convert ODT to PDF;20) convert Excel to PDF; 21) convert PPT to PDF;22) convert PDF to BMP; 23) convert PDF to TIFF;24) convert PDF to PNG. »

Debenu PDF Tools is a free Windows application built using Debenu’s Quick PDF Library for working with PDF files. Just right-click on a PDF in Windows Explorer and select the ‘Debenu PDF Tools’ menu item to see the list of features. Or double-click to work directly within the viewer. It’s simple to use and will let you preview PDF files, merge PDF files, edit document properties, add and edit custom metadata, convert images to PDF, convert PDF to text and much more.

Functions: Split pdf-files, Merge pdf-files together, Compose new PDF-Files while using individual sorting, customized patterns (similar to Word printing), etc. You can even append encrypted PDF files to another PDF document Faster than Java based PDF Split & Merge Tools Can be used on USB-Sticks as PortableApp PDF Split & Merge Tool Support for English and German is included.

PDFTools is a PDF management application. It can encrypt, decrypt, join, split, stamp, create and rearrange a PDF file.Version 1.1+ includes a very powerful and simple to use XML to PDF converter.

PyPDF2 - A utility to read and write pdfs with Python