Output file is owned by root

[aporquez]

I'm using .net core to call the unoconv through Process.Start. The pdf file is being generated but the owner of the file is "root" even though I run the application as a normal user(current user). I also tried using the "convert" of ImageMagick and the owner of the generated file is the current user.

I'm using Ubuntu 16.10 and I installed unoconv using
sudo apt-get install unoconv

unoconv --version
unoconv 0.7
Written by Dag Wieers dag@wieers.com
Homepage at http://dag.wieers.com/home-made/unoconv/
platform posix/linux
python 3.5.2+ (default, Sep 22 2016, 12:18:14)
[GCC 6.2.0 20160927]
LibreOffice 5.2.2.2

    public class Program
    {
        public static void Main(string[] args)
        {
 	    // output is owned by root
	    ProcessStartInfo unoconv = new ProcessStartInfo("unoconv");
            unoconv.UseShellExecute = false;
            unoconv.CreateNoWindow = true;
            unoconv.Arguments = string.Format("-f pdf -vvv -o {0} {1} ", "/home/sa/Documents/test-doc.pdf", "/home/sa/Documents/test.doc");
            unoconv.RedirectStandardInput = true;
            unoconv.RedirectStandardError = true;
            Process.Start(unoconv).WaitForExit();

	    // output is owned by current user
	    ProcessStartInfo convert = new ProcessStartInfo("convert");
            convert.UseShellExecute = false;
            convert.CreateNoWindow = true;
            convert.Arguments = string.Format(@"-density 150 {0} {1}", "/home/sa/Documents/test-tif.tif", "/home/sa/Documents/test-tif.pdf");
	    convert.RedirectStandardInput = true;
            convert.RedirectStandardError = true;
            Process.Start(convert).WaitForExit();        
        }
    }

This is the console output:
Using office base path: /usr/lib/libreoffice
Using office binary path: /usr/lib/libreoffice/program
Selected output format: Portable Document Format [.pdf]
Selected office filter: writer_pdf_Export
Used doctype: document
Output file: file:///home/sa/Documents/test-doc.pdf

[aporquez]

Using the terminal

unoconv -vvvv -f pdf -o test-doc.pdf test.doc
Verbosity set to level 4
Using office base path: /usr/lib/libreoffice
Using office binary path: /usr/lib/libreoffice/program
DEBUG: Connection type: socket,host=127.0.0.1,port=2002,tcpNoDelay=1;urp;StarOffice.ComponentContext
Input file: test.doc
Selected output format: Portable Document Format [.pdf]
Selected office filter: writer_pdf_Export
Used doctype: document
Output file: file:///home/sa/Documents/test-doc.pdf

ls -l
-rwxrw-r-- 1 sa sa 82432 Feb 19 20:39 test.doc
-rw-r--r-- 1 root root 53338 Feb 19 23:23 test-doc.pdf

[aporquez]

Found the problem. I'm missing the --preserve parameter.

[bertalanimre]

If I try to use the preserve option I get an error message. I still get myself the file, but the owner is still root:root. This is the error message:

sudo -u nginx unoconv --format=pdf --preserve --output=normalized.pdf sample.txt
Traceback (most recent call last):
  File "/bin/unoconv", line 1400, in <module>
    main()
  File "/bin/unoconv", line 1316, in main
    convertor.convert(inputfn)
  File "/bin/unoconv", line 1137, in convert
    self.preserve(inputfn, outputfn)
  File "/bin/unoconv", line 922, in preserve
    with open(outputfn, "a") as f:
IOError: [Errno 13] Permission denied: '/AAAA/BBBB/CCCC/....../normalized.pdf'

All the folders are owned by nginx:nginx and they have 777 permissions so I have no clue why is there no permission denied for unoconv.