Get flash to fully experience Pearltrees
Important: Known issues In the upload field is broken. We're fixing this is a new version of the application. In the meantime use Firefox or Safari. Some users have reported conversion problems with files containing complex backgrounds, especially when they come from a previous PowerPoint to PDF conversion. As for the current pdf2swf implementation, there is no known way to avoid this but replacing the background for a plainer one.
This is a list of free and open source software packages : computer software licensed under free software licenses and open source licenses .