http://www.howtogeek.com/108869/how-to-back-up-ubuntu-the-easy-way-with-dj-dup/
Can recover the whole system, a selected file (right click Revert to Previous Version ...), and a deleted file (right click Restore Missing Files ...)
However some users complained about its unreliability
https://apps.ubuntu.com/cat/applications/deja-dup/
Thursday, January 16, 2014
Sunday, January 12, 2014
Tools/procedures for generating high-quality PDF/EPS files with LaTex math
Without using pricey licensed softwares, you can generate
high-quality PDF/EPS files with LaTex math expressions, as shown in the
following. Other procedures may work as well, but the following have
been tested and may save some time.
1. Drawing tools and procedures
To make your own figures with LaTex math, you may use LibreOffice Draw. To enable LaTex, in Tools --- Extension Manager..., add TexMaths (http://roland65.free.fr/texmaths).
You may also use Inkscape. For math expressions, use Extensions --- Render --- LaTex formula ...
Both LibreOffice Draw and Inkscape are free.
On the other hand, if you have MS Office, you may use Powerpoint to draw, with TexPoint ($30~$45) or IguanaTex (free) for math expressions.
After drawing, export or save as a PDF file and embed all fonts. Converting to other file formats may be not preserve all formats/information.
2. PDF tools and procedures
This PDF file should have all fonts embedded. To check, use:
pdffonts a.pdf
to make sure all fonts are embedded correctly.
To generate an EPS file with a bounding box or a PDF file with only the drawing area kept, do:
pdfcrop a.pdf b.pdf
This removes the white space around the drawing area in a.pdf and generates an output file b.pdf.
If EPS format is desirable, perform:
pdftops -eps b.pdf
This is generate b.eps with the bounding box.
If Adobe Acrobat Professional is available, you may also crop the pdf using it, and save as another PDF file or save as an EPS file.
3. Include the drawing file in LaTex document
The b.pdf file or b.eps file can be included in a LaTex document using e.g.:
\begin{figure}[h]
\begin{center}
\subfigure[]{\scalebox{.6}{\includegraphics{b1}}}
\subfigure[]{\scalebox{.6}{\includegraphics{b2}}}
\end{center}
\end{figure}
If no file extension is specified, PDFLaTex will look for b1.pdf, b2.pdf, etc., and LaTex will look for b1.eps, b2.eps, etc.
If LaTex --> dvi2ps --> ps2pdf procedure is to be followed, make sure the option
-Ppdf
is used for dvips, and the options
-dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress
are used for ps2pdf.
If PDFLaTex or the like is to be used used, set the following option:
The produced PDF file should have all fonts embedded and high-quality figures. You may use pdffonts to verify.
1. Drawing tools and procedures
To make your own figures with LaTex math, you may use LibreOffice Draw. To enable LaTex, in Tools --- Extension Manager..., add TexMaths (http://roland65.free.fr/texmaths).
You may also use Inkscape. For math expressions, use Extensions --- Render --- LaTex formula ...
Both LibreOffice Draw and Inkscape are free.
On the other hand, if you have MS Office, you may use Powerpoint to draw, with TexPoint ($30~$45) or IguanaTex (free) for math expressions.
After drawing, export or save as a PDF file and embed all fonts. Converting to other file formats may be not preserve all formats/information.
2. PDF tools and procedures
This PDF file should have all fonts embedded. To check, use:
pdffonts a.pdf
to make sure all fonts are embedded correctly.
To generate an EPS file with a bounding box or a PDF file with only the drawing area kept, do:
pdfcrop a.pdf b.pdf
This removes the white space around the drawing area in a.pdf and generates an output file b.pdf.
If EPS format is desirable, perform:
pdftops -eps b.pdf
This is generate b.eps with the bounding box.
If Adobe Acrobat Professional is available, you may also crop the pdf using it, and save as another PDF file or save as an EPS file.
3. Include the drawing file in LaTex document
The b.pdf file or b.eps file can be included in a LaTex document using e.g.:
\begin{figure}[h]
\begin{center}
\subfigure[]{\scalebox{.6}{\includegraphics{b1}}}
\subfigure[]{\scalebox{.6}{\includegraphics{b2}}}
\end{center}
\end{figure}
If no file extension is specified, PDFLaTex will look for b1.pdf, b2.pdf, etc., and LaTex will look for b1.eps, b2.eps, etc.
If LaTex --> dvi2ps --> ps2pdf procedure is to be followed, make sure the option
-Ppdf
is used for dvips, and the options
-dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress
are used for ps2pdf.
If PDFLaTex or the like is to be used used, set the following option:
updmap --setoption pdftexDownloadBase14 true
The produced PDF file should have all fonts embedded and high-quality figures. You may use pdffonts to verify.
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