Free are there any free tools for editing pdf files software for linux

ippfp is an easy-to-use library which provides oo-methods for creating and rendering user interfaces in PHP independently from output format. It features HTML, GTK, PDF and ncurses.
You can create input masks such as forms for databases or other user interfaces. ippfp features abstraction, elements can be accessed like data structures, they have values and various attributes.
For me ippfp is a construction kit to build software quickly.
Another purpose could be the automatically generation by software.
You can select one of these packages to display:
- HTML
- PDF
- GTK
- ncurses
Available elements:
- button
- checkbox
- choice
- fopen (file open)
- grid
- image
- label (readonly text)
- link
- multiplechoice
- password
- radio
- text
- textarea
- table
The library puts the elements together in a frame. For HTML a HTML page will be created which contains the elements, GTK and ncurses have appropriate windows. The data of elements will be stored in session variables.
One does not need to care for details of formats like HTML-tags or GTK-classes. For navigating within a program the button element should be used. To arrange elements the elements "grid" or rather "table" are the right choices.
Elements are created with the "create"-functions which are members of the ippfp main instance and returns objects respective to the goal. To make them visible they will be grouped in a "view" which will be given to the ippfp main instance for processing.
This is a flexible way because an existing element can be used in several views. Thus, elements will be included by reference, not by copy. The advantages are: if an element is in a state, it is independent from the current view and related informations are available globally.
For example: create a text element:
$myText = $ippfp->createText("default", 20, "my_text");
...
echo $myText->getValue();
Your code should be organised into php functions. For example if a button is used, it calls the function given as attribute. It is expedient to integrate your views into this functions.
Enhancements:
- switched from html to xhtml, format identifier is XHTML
- a simple debug function added, for internal debugging, writes messages into a file (usefull for ncurses)
- pdf passes the "tabellentest", tables and grids can extend over a big number of pages, and can contain big text
- some bugfixes in xhtml and pdf

AsterFax is an email to fax gateway for the transmission of faxes using Asterisk.
Asterisk is an Open Source PABX (or PBX) which provides all of the functionality of a high end PBX, free of charge.
AsterFax builds on the services provided by Asterisk to provide a full fledged email based Fax Gateway.
What that means is that with AsterFax and Asterisk you can send faxes from your desktop using your standard email client without have to install any software on your desktop.
AsterFax can translate a normal email message into a fax message. You simply enter the destination phone number in the To address, compose your email message and click send. Its that easy.
For more formal correspondence AsterFax also supports a growing number of file formats such as PDF, Tiff, Postscript, MS-Word and OpenOffice Writer. You can either attach the file to your email message or for applications such as MS-Word and OpenOffice you can fax directly from the applications by using the Send Email option. The resulting email is sent as a fax message.
If any errors occurring during transmission a error report is sent back to your inbox.
You can also preview how the fax will look by sending email to the special preview address, which simply formats the message ready for transmission and then sends it back to you via email for previewing before the fax is sent.
AsterFax supports a growing list of file types such as Tiff, PDF, postscript, MS-Word, MS-Excel and the OpenOffice Writer. AsterFax is also extensible in that you can easily add support for additional file formats via the AsterFax.xml configuration file providing that you have access to a third party product that can convert your required file format to one of the supported file formats such as PDF or tiffg3.
Additional file formats will follow shortly (see the Roadmap).
For the technically minded AsterFax is written in pure Java and utilizes the Asterisk Manager API to submit jobs.
AsterFax uses external applications to perform the conversion of attachments to the required tiff format for transmission.
AsterFax can be extended via a simple xml configuration file to convert and transmit any other file format providing a suitable conversion application is available.
AsterFax includes a simple standalone SMTP gateway which handles the receipt of emails. AsterFax is not a complete SMTP gateway in that it will only accept messages which are to be faxed. Alternatively AsterFax can be integrated with your existing SMTP server (Sendmail. Postfix, Exchange Server) by way of tools such as Procmail.
AsterFax requires Asterisk@Home or Asterisk with the spandsp (txfax, rvfax) extensions.
Main features:
- Built as an extension to Asterisk.
- Integrated SMTP gateway provides a simple one stop install.
- Support for a number of file formats including: Tiffg3, Postscript, PDF, Word, OpenOffice Writer.
- Preview mode allows previewing of rendered faxes before they are sent.
- Support for multiple Asterisk Channels as well as group channels (e.g. Zap/g0).
- Send faxes without specialised Fax Modems (just use your existing Asterisk/Digium hardware).
- Send faxes directly from MS-Word and OpenOffice Writer
- No client side install required.
- Send standard email (text or html) as fax or attach a Word, PDF, Writer etc.. for transmission as a fax.
- Email body used as a Coversheet to attachments
- Send to multiple recipients in a single message by providing multiple To addresses.
- No special formatting required in the email.
- Extensible support for additional file formats via simple xml configuration file.
- Built-in test suite to aid in configuration and installation.
- Automatic Archiving of all faxes to a designated mailbox.
- Automatic Delivery receipts.
Whats New in 1.0 Stable Release:
- This release is the culmination of months of effort and includes a number of bug fixes as well as a few new features.
- Most notably this is the first release of AsterFax Free Edition.
- The free edition includes all the features of any other edition but will only transmit a single fax at a time.
- Thanks to everyone that has given us feedback and helped make the product what it is today.
- We look forward to working with you all on this release.
Whats New in 1.1 Beta 3 Development Release:
- This release includes an enhancement that allows the header and footer to vary with the destination fax number.
- A different company name and header and footer format can be used for each destination fax number.
- It also adds a new ReturnFaxNumber property, which is included in the header and footer with a %R parameter.
- There is no need to change any configuration files to use beta 3, but AsterFax.xml must be modified according to the release notes to make use of the feature.

Edit Config Files is an extension that allows you to edit config files.

Edit configuration files with your favorite editor from Toolbar or Tools menu.

Remove the menu icon

Add the following to userChrome.css:

#editconfigfiles-menu
{
list-style-image:none !important;
}

Remote File Index is an add-on for Plone which keeps track of a document only by its url.
Did you ever find a huge pdf file that youd like to keep track of but wouldnt like to copy it entirely on your server ?
Now RemoteFileIndex indexes the content in the portal Catalog and only keeps the url of that document.
Works with:
- Plone 2.5.2
- Plone 2.5.1
- Plone 2.5
Enhancements:
- better integration with ATContentType

text-vimcolor is a command-line program to syntax color a file in HTML, XML or PDF.

SYNOPSIS

$ text-vimcolor --format html --full-page FILENAME > OUTPUT.html
$ text-vimcolor --format xml FILENAME > OUTPUT.xml
$ text-vimcolor --format pdf FILENAME --output OUTPUT.pdf

This program uses the Vim text editor to highlight text according to its syntax, and turn the highlighting into HTML, XML or PDF output. It works with any file type which Vim itself can highlight. Usually Vim will be able to autodetect the file format based on the filename (and sometimes the contents of the file).

Exactly one filename should be given on the command line to name the input file. If none is given input will instead be read from stdin (the standard input).
If Vim cant guess the file type automatically, it can be specified explicitly using the --filetype option. For example:

$ text-vimcolor --format html --filetype prolog foo.pl > foo.html

This program is a command line interface to the Perl module Text::VimColor.

OPTIONS

The following options are understood:

--help

Show a summary of the usage, including a list of options.

--debug

Turns on debugging in the underlying Perl module. This makes it print the command used to run Vim.

--filetype file-type

Set the type of the file explicitly. The file-type argument should be something which Vim will recognise when set with its filetype option. Examples are perl, cpp (for C++) and sh (for Unix shell scripts). These names are case sensitive, and should usually be all-lowercase.

--format output-format

The output format to generate. Must be one of the following:
html

Generate XHTML output, with text marked with elements with class attributes. A CSS stylesheet should be used to define the coloring, etc., for the output. See the --full-page option below.

xml

Output is in a simple XML vocabulary. This can then be used by other software to do further transformations (e.g., using XSLT).

pdf

XML output is generated and fed to the FOP XSL-FO processor, with an appropriate XSL style sheet. The stylesheet uses XSLT to transform the normal XML output into XSL-FO, which is then rendered to PDF. For this to work, the command fop must be available. An output file must be specified with --output with this format.

Full details of the HTML and XML output formats can be found in the documentation for Text::VimColor.

--output output-filename

Specifies the name of the output file (which will end up containing either HTML, XML or PDF). If this option is omitted, the output will be sent to stdout (the standard output). This option is required when the output format is PDF (because of limitations in FOP).

--full-page

When the output format is HTML, this option will make the output a complete HTML page, rather than just a fragment of HTML. A CSS stylesheet will be inserted inline into the output, so the output will be useable as it is.

--no-inline-stylesheet

When the output format is HTML and --fullpage is given, a stylesheet is normally inserted in-line in the output file. If this option is given it will instead be referenced with a element.

--let name=value

When Vim is run the value of name will be set to value using Vims let command. More than one of these options can be set. The value is not quoted or escaped in any way, so it can be an expression. These settings take precedence over --unlet options.

This option corresponds to the vim_let setting and method in the Perl module.

--unlet name

Prevent the value of name being set with Vims let command. This can be used to turn off default settings.

This option corresponds to the vim_let setting and method in the Perl module, when used with a value of undef.

jsp File Browser is an easy to use and easy to install file browser java server page. This JSP program allows remote web-based file access and manipulation.
Main features:
- Create, copy, move, rename and delete files and directories
- View Files (pictures, movies, pdf, html,...)
- Edit textfiles
- Upload files to the server (Status via Upload monitor)
- Download files from the server
- Download groups of files and folders as a single zip file that is created on the fly
- Execute native commands on the server (e.g ls, tar, chmod,...)
- View entries and unpack zip, jar, war and gz files on the server
- Just one file, very easy to install (in fact, just copy it to the server)
- Customizable layout via css file
- Restrict file access via black or whitelist
It should work with any JSP1.1 compatible server(e.g. Tomcat>=3.0), I tested it on Tomcat 4.0, Resin 2.1.7 and Jetty.
Enhancements:
- A read-only version was added.
- It is now also usable as an upload-center.
- Some UI enhancements were made, like shortkeys and a better layout.
- It should also load a bit faster.

Printing webpages is great, but every browser renders a page differently. This can cause problems if you need to be able to print a page that looks the same no matter what platform or browser is being used.
Additionally, PDF files can be searched and browsed as a sort of notebook, making it a useful file format for large text files.
HTML_ToPDF is a PHP class that makes it easy to convert HTML documents to PDF files on the fly. HTML_ToPDF project grew out of the need to convert HTML files (which are easy to create) to PDF files (which are not so easy to create) fast and easily.
Main features:
- The ability to encrypt and set permissions on the PDF file on the fly.
- The ability to set the header and footer text, including the color.
- The ability to set the page size and margins.
- The ability to convert images in the webpage to images embedded in the PDF. The script tries to convert relative image paths in to absolute ones as well.
- The ability to use the CSS in the HTML file in the creation of the PDF. This includes remote CSS files as well.
- The ability to convert remote files.
- The ability to convert links into embedded clickable links in the PDF file
- The ability to scale the HTML page.
- Easy setting of any of these options through the methods of the class.
- Tries to fix quirks in html pages which break html2ps.
- PEAR error handling.
- Works on both Unix/Linux and Windows.
Enhancements:
- Raw HTML can be passed straight into the class, making it easier to convert dynamic pages.
- PEAR is no longer required.
- CSS via "link" tags now works.
- Handling of "input" tags was improved.
- Better instructions were written for Windows installs.