Is there a free way to convert RTF to PDF?

Asked 25/2, 2009 at 15:18 Answered 4/4, 2014 at 9:59

How can I programmatically convert RTF documents to PDF?

Ainslee answered 25/2, 2009 at 15:18 Comment(5)

What's your context? Are you trying to do this on the desktop (the PDFCreator options below are good ones there)? Are you trying to do this as part of a web app? Something else? Please edit your question to let us know. – Actin 25/2, 2009 at 15:55

Are you on Windows or some other platform? Are you looking for a java solution, for a C/C++ solution, or is this indifferent? Will this be a server application (e.g. a web server) or a desktop application (multiple users will download and install it?) – Therine 25/2, 2009 at 16:3

server side on linux c++ or java – Ainslee 26/2, 2009 at 8:11

Then there is no question about it: use OpenOffice + JODConverter, or OpenOffice with a direct C++ UNO interface (it's headless, does not require a DISPLAY.) I am using OpenOffice3 on Ubuntu - see my latest edit below. – Therine 26/2, 2009 at 18:52

See my answer here. – Melioration 19/10, 2019 at 17:31

OpenOffice.org can be run in server mode (i.e. without any GUI), can read RTF files and can output PDF files.

Daddy answered 25/2, 2009 at 15:47 Comment(6)

This is cross-platform, but unsuitable for desktop applications. Very suitable for running behind a web-server, though. – Therine 25/2, 2009 at 16:2

That's true. Since I dabble mostly in server-side Java "cross-platform" is a lot more important for me than "suitable for a desktop app" ;-) – Daddy 25/2, 2009 at 16:24

Would anyone update this post to give some guidelines on server-side setup/guidelines ? – Petcock 29/4, 2013 at 11:54

Second this; finding information on how to do it on the LibreOffice wiki is proving problematic. – Cursor 16/10, 2013 at 20:45

Today I just tried Open-Office conversion using C# and let me tell you, this works "good" but not perfect. meaning, some alignments gets messed in the process and for commercial this won't do, unless you're looking to do this with very simple docs, don't waste your time on it. – Darius 11/5, 2015 at 12:6

LibreOffice has some extremely nasty issues with how it parses RTFs. Most of them have existed for years (or were fixed and then reintroduced), and nobody at the .org seems to really consider it a priority. Would suggest avoiding that particular solution if possible. – Cursor 27/10, 2016 at 16:29

You have a number of options depending on:

the platform(s) your application will be running on
whether your application will be a server application (e.g. a web service that you set up once and then it runs), or a widely-available desktop application (e.g. something that must be easily downloadable and installable by many people)
whether you are willing to put little or more programming effort into getting the solution to work
whether you are flexible as to the programming language you will use

Here are some options:

PDFCreator + COM
- Windows only
- suitable for both desktop and server applications
- medium programming effort
- any language that allows you to speak COM
OpenOffice ( + JODConverter - optional )
- Cross-platform (Windows, Linux, etc.)
- suitable for server applications, as OpenOffice is a 100MB+ download
- low programming effort
- Java (if using JODConverter), or any language that can interface with OpenOffice's UNO
IText + Apache POI
- Cross-platform (Windows, Linux, etc.)
- suitable for both desktop and server applications
- high programming effort
- Java

EDIT

Here is an older post that has some commonality with your question.

EDIT 2

I see from your comments that you are on Linux and open to either C++ or Java. Definitely use option 2.

JODConverter (Java): the library takes care of spawning OpenOffice in headless mode and talking Uno to it on your behalf. You provide JODConverter with an input and output file name as well as the input and output types (e.g. rtf and pdf), and when it returns to you the output file is ready.
C++: you can fork+exec one (or more, for load balancing) OpenOffice instances in headless mode (soffice will listen for UNO requests on a socket e.g. port 8100.) From your application use Uno/CPP to instruct OpenOffice to perform the conversion the same way JODConverter does (see the JODConverter source code for how to do this.)

/opt/openoffice.org3/program/soffice.bin \
-accept=socket,host=127.0.0.1,port=8100;urp; \
-headless -nocrashreport -nodefault \
-nolockcheck -nologo -norestore

I am successfully using JODConverter from a Java app to convert miscellaneous document types (some documents dynamically generated from templates) to pdf.

Therine answered 25/2, 2009 at 16:25 Comment(3)

how to i combine iText with poi to convert existent rtf ( with text allready inside with design ) – Ainslee 26/2, 2009 at 8:14

You may want to ask a new question specific to combining the two. As I said, programming effort is high. I know that it has been done, see chsrinivas123's post on experts-exchange.com/Software/Server_Software/…. – Therine 26/2, 2009 at 18:39

iText does not support RTF directly, it is first required to convert your document to HTML\XHTML, which basically means, another layer that will most likely not show exactly as the original RTF, just tried it, wasn't satisfied, still looking. – Darius 11/5, 2015 at 12:8

Four years late to the party here, but I use Ted in my web application. I generate RTF programmatically, then use the rtf2pdf.sh script included in the package to generate the PDF. I tried OOo and unoconv previously, but Ted proved faster and more reliable in my application.

Hine answered 8/11, 2013 at 13:26 Comment(1)

I see that Ted has no option for hiding the hidden text of RTF file, in the converted PDF file. – Inattention 2/4, 2014 at 12:32

Use PDFCreator, a free pdf printer. Just print to pdf. You can control this through COM. Example code is in the COM folder of the install directory.

Patman answered 25/2, 2009 at 15:21 Comment(0)

PDFCreator for windows is the easiest for single documents.

It's also possible to automate PDF creation for large sets of documents by converting them to XML and using XSLT and XSL-FO. There are lots of tutorials for this out there.

For a specific language, such as python, libraries exist to output to PDF fairly trivially.

The only advantage of XML over other simpler solutions is extensibility. You could also programmatically output your document in RTF, HTML, TXT, or just about any other text format.

Empressement answered 25/2, 2009 at 15:33 Comment(2)

This will, of course, only work on Windows. Unfortunately it has not yet been made clear what platform the solution is required for. – Therine 25/2, 2009 at 21:35

naturally. Although the XSLT solution will work for just about any platform. – Empressement 25/2, 2009 at 21:35

LibreOffice can convert RTF documents to PDF via command line.

Here are the instructions to install it on CentOS.

And this is an example to initiate conversion from PHP code:

<?php shell_exec('libreoffice4.2 --headless --invisible --norestore --convert-to pdf test.rtf'); ?>

Inattention answered 4/4, 2014 at 9:59 Comment(1)

Out of all the options I checked this option about 2 months ago, and it is probably the worst for me, it totally misinterpreted the RTF structure and I can't say i recommend it to do even small and simple docs. let alone commercial use. do not fall for the 'command line' option, you'll get better results with Open Office although it requires more code on your part. – Darius 11/5, 2015 at 12:12

PrimoPDF. It acts as a virtual printer, so you just print to it, and out pops a PDF.

Layer answered 25/2, 2009 at 23:26 Comment(0)

Look at PDF Printer

Tyranny answered 25/3, 2009 at 13:25 Comment(0)

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