PDF::Core is used by Prawn to render PDF documents

The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe

This library provides a number of PDF::Reader[0] based tools for use in testing PDF output. Presently, the primary purpose of this tool is to support the tests found in Prawn[1], a pure Ruby PDF generation library. However, it may be useful to others, so we have made it available as a gem in it...

A Ruby frontend to the pdftk binary, including FDF and XFDF creation. Also works with the PDFTK Java port. Just pass your template and a hash of data to fill in.

PDF content extraction tool and library.

Packages the viewer distributed with PDF.js and makes it available in two styles (full, minimal).

This library provides the ability to create PDF documents using only native Ruby libraries. There are several demo programs available in the demo/ directory. The canonical documentation for PDF::Writer is "manual.pdf", which can be generated using bin/techbook (just "techbook"...

A gem for plugging pdf.js into a Rails application

Merge multiple PDFs in to one using iText's PdfCopyFile.

Super cool PDF templates using iText's PdfStamper. == CAVEAT: Anything super cool must have a caveat. You have to use JRuby or RJB. Plus you can only use Adobe LiveCycle Designer to create the templates. == EXAMPLE: pdf = PDF::Stamper.new("my_template.pdf") pdf.text :first_name, &quo...

a library that can read structured and positional text from PDFs. Ideal for asembling structured data from invoices and the like.

Wraps the pdfinfo command line tool to provide a hash of metadata

Uses command-line pdftohtml tools to convert PDF files to HTML.

This gem is simple Paperclip processor which uses swftools to convert uploaded pdf files to swf

The Pdfcrowd API lets you easily convert between HTML, PDF and various image formats.

A ruby gem for converting PDF documents into a series of images. This module is based off poppler_utils and ImageMagick.

Arrange pages of existing PDF documents so they fit on a single page, and so they can be folded and cut to produce signatures that may then be assembled to form a bound book.

A gem for reading file data from poppler pdfinfo

Pdftk library is used for merging diffrent pdf files.

This gem is called pdf_paradise. It attempts to be a swiss army knife, a wrapper, over pdf-related functionality in general, by tapping into external projects, such as prawn, qpdf and so forth. For more information, please have a look at the documentation of the project on the homepage of thi...