pdfinfo and other apps in the `utils` directory use the standard convention of passing "-" as the filename to instruct it to read from STDIN.<div><br></div><div>for example:</div><div><br></div><div> # pdfinfo - < Desktop/servlet-30.pdf</div> <div><br></div><div>Alternatively you can use "fd://0" (replacing 0 with whichever FD you want to read from)<br><br><div class="gmail_quote">On 20 May 2011 11:54, Stefano Emilio Campanini <span dir="ltr"><<a href="mailto:stefano.campanini@tinvention.net">stefano.campanini@tinvention.net</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi<br> <br> I'm using poppler from a while, I find it of high quality and very<br> performant also on big files, in particular the tools pdftoppm and<br> pdfinfo.<br> <br> The question: seems to be not possible having pdfinfo tool reading the<br> file from the standard input, is it true ? Or I have missed something<br> ?<br> <br> stefano@tinvention-notebook-asus:~$ pdfinfo < Desktop/servlet-30.pdf<br> pdfinfo version 0.12.4<br> Copyright 2005-2009 The Poppler Developers - <a href="http://poppler.freedesktop.org" target="_blank">http://poppler.freedesktop.org</a><br> Copyright 1996-2004 Glyph & Cog, LLC<br> Usage: pdfinfo [options] <PDF-file><br> -f <int> : first page to convert<br> -l <int> : last page to convert<br> -box : print the page bounding boxes<br> <br> stefano@tinvention-notebook-asus:~$ pdfinfo Desktop/servlet-30.pdf<br> Creator: cairo 1.7.4 (<a href="http://cairographics.org" target="_blank">http://cairographics.org</a>)<br> Producer: cairo 1.7.4 (<a href="http://cairographics.org" target="_blank">http://cairographics.org</a>)<br> Tagged: no<br> <br> <br> Another question, the pdfinfo help report the "-f" and "- l"<br> parameters saying "first page to convert" , does pdfinfo convert pages<br> ? Is it a mistake ?<br> <br> Thanks in advance for the help.<br> Stefano<br> <font color="#888888"><br> --<br> Tinvention - Ingegneria Informatica -<br> <a href="http://tinvention.net/" target="_blank">http://tinvention.net/</a><br> ing. Stefano E. Campanini<br> _______________________________________________<br> poppler mailing list<br> <a href="mailto:poppler@lists.freedesktop.org">poppler@lists.freedesktop.org</a><br> <a href="http://lists.freedesktop.org/mailman/listinfo/poppler" target="_blank">http://lists.freedesktop.org/mailman/listinfo/poppler</a><br> </font></blockquote></div><br></div>