In a text file `titles.txt`, I have the title, category and filenames of all the documents I wish to insert in TeX file.
I can properly insert the title and the category (used with `\index`) but unfortunately I can not use the filename since **`\includepdf` added extra space** that I can't remove.
The structure of the text file is the following:

```
title1
category1
filename1
tilte2
category2
filename2
etc..

```

Here is the code:

```
\newcounter{numexos}
\setcounter{numexos}{1}

\newread\myfile
\newcommand*\readfile{%
\immediate\openin\myfile=titles.txt\relax
\loop\unless\ifeof\myfile
    \read\myfile to\mybtitle
    \read\myfile to\mycategory
    \read\myfile to\myfname

    \ifeof\myfile\else
       \index{\mycategory}
       \includepdf[addtotoc={1, section, 1 , \mybtitle, \numexos },fitpaper=true,pagecommand={}]{\myfname.pdf}
       \addtocounter{numexos}{1}
    \fi
\repeat
\immediate\closein\myfile
}

```

Instead of using the filename stored in the TXT file I can use the counter if possible: I've tried but I failed for the same reasons : additionnal space in the filename:
`01 .pdf`