 I am Muhammed Kara. I am working as a consultant software engineer at Collaboraproactivity. I would like to tell you a little bit about a new feature of LibreOffice. We have been developing lately. It's document reduction, which can be used in collaborative environments to prevent leakage of sensitive information. Can you hear me now? Let me tell you a little bit about myself. I am Muhammed Kara from Turkey. I work mainly on core and UI of LibreOffice. I am at Collaboraproactivity since last December. I was at Pardus project before. On the community site, I am a certified LibreOffice developer and a longtime GNOME contributor, member of the GNOME document foundation. What is reduction? Most people ask me about this because it has different meanings. We use the meaning here as sanitization. Wikipedia describes it as a process of removing sensitive information from a document or other message so that the document may be distributed to a broader audience. It can be personal information on some patient records or some citizen information in some government institution, things like that. Why? The reason for reduction depends on situation and use case, but these are some of them. It can be used to unclassified documents. Some institutions and governments release some classified documents after some time, but they need to reduce personal information. Or it can be used for privacy protection and data anonymization, like mass information that can be used for statistics or for scientific research, but which contain personal data which shouldn't be disclosed. Reduction can be used also for that and prevent information leak in collaborative environments where users and groups have different access levels to information and documents. You deduct the document before sharing with others. Who are possible users, governments and military, public institutions, and anyone who would like to share information without disclosing personal and private information. The rest is up to your imagination. The only thing is to deduct personal private information that needs to stay private. Let me tell you a little about the usual process. We expect this process for our product to be used in the LibreOffice. You open a document in LibreOffice Writer or CALC, a spreadsheet or a word processing document. Then you do some changes, edit document. Then it is ready to be shared. You click a button in LibreOffice and it takes your document into reduction mode. Then you deduct the document in LibreOffice Draw and you can then export it and share with others a sanitised version of it. This is how the technical process goes. We convert the document in Writer or CALC document into a metafile. It is simply a description of what is seen on a screen. Then we spawn a LibreOffice Draw instance and insert our metafile into Draw. Each document page into a page of LibreOffice Draw. Then we automatically open LibreOffice Reduction Toolbar because we are in the reduction process. Then when user is done with the reduction, when user clicks on the export button, we flatten or pixelise the document so that it no longer consists of any textual information which can be selected. It is only an image so that normally if you draw rectangles or blacken some parts of a text, then turn it into a PDF. You can still choose the parts and copy that into another work processor and by changing colours and background, you can still get the data. To prevent that, we pixelise the pages. This is how Reduction Toolbar looks like at the moment. We have a rectangle reduction tool. It allows you to draw rectangles on the areas that should be redacted. We have a free form reduction tool. It allows you to, like using a pen on a paper, you can redact freely. Then you click on the export tool, export button. It asks you for a location to export, then pixelises the document and writes that as a PDF document. It is still working progress. We will add more features to that, but this is what we have at the moment. Even now, actually, it can be used for some purposes. How do we do it? There are some products specifically developed for this purpose. It only serves for reduction purpose and it is sold or licensed for some good amounts, per user amounts, some of them. We already had the document editing facilities in LibreOffice, so we already had most of the pieces. We decided to develop this feature on top of LibreOffice. We are working on the core rep of LibreOffice, which is master or development branch. Everything we do is open source and it can be immediately accessed by everyone and can be used. It is being developed by a collaborative productivity team, not completely at the point where we won't yet. It is still working progress, so if you try it, if you use it, expect unstabilities. But the reports are very welcome. We are still working on adding more features. I guess we have some more time. I would like to show how it works. I'll show it on the development version, so it is intentionally inefficient, it's a debug build. We open a document, for example, a document in Writer, or we prepare a document in Writer. Then when we are ready to Reduct and Share, we select Reduct, and it is transferred into LibreOffice Draw, and Reduction Tool Bar is automatically opened. You can select a Rectangle Reduction Tool to Reduct with Rectangles. It keeps selected, the tool is selected as long as you keep using it. Then you can also use the Free Reduction Tool, like drawing with a pen on a paper. You can share with others with same access level as like this. So they can confirm the reduction, or you can blacken the Reducted areas. I will do just one of them. It is not complete yet, because... Then we are done with the document. We click on the Export button. We choose a location and save it. And we have a Reducted document. You see the text under this rectangle is gone for good. It no longer exists. Okay, any questions? The file size depends on the content of the document, and of course it is bigger than a text document, because it's a bitmap. Any other questions? Sorry, could you repeat please? Oh, I see. It can be a future development. As I said, we are still developing. We are not even at the middle of our plans, so we can add more features like making non-reducted text selectable. That could be a future feature. Any other questions? Thank you.