HTTP/2 301 server: nginx date: Tue, 30 Dec 2025 01:53:07 GMT content-type: application/rss+xml; charset=UTF-8 location: https://chongyangma.wordpress.com/comments/feed/ x-hacker: Want root? Visit join.a8c.com/hacker and mention this header. host-header: WordPress.com vary: accept, content-type, cookie last-modified: Tue, 30 Dec 2025 01:53:07 GMT etag: "5957ada7f212f405c3c36fa60c9f2b37" x-redirect-by: WordPress x-ac: 2.bom _dca MISS alt-svc: h3=":443"; ma=86400 strict-transport-security: max-age=31536000 server-timing: a8c-cdn, dc;desc=bom, cache;desc=MISS;dur=416.0 HTTP/2 200 server: nginx date: Tue, 30 Dec 2025 01:53:08 GMT content-type: application/rss+xml; charset=UTF-8 vary: Accept-Encoding x-hacker: Want root? Visit join.a8c.com/hacker and mention this header. host-header: WordPress.com vary: accept, content-type, cookie last-modified: Tue, 30 Dec 2025 01:53:08 GMT etag: W/"0ea3fc398d4e9f308772e8d8677feb71" content-encoding: gzip x-ac: 3.bom _dca MISS alt-svc: h3=":443"; ma=86400 strict-transport-security: max-age=31536000 server-timing: a8c-cdn, dc;desc=bom, cache;desc=MISS;dur=411.0 https://chongyangma.wordpress.com Debug my code. Debug my life... Sat, 01 Sep 2018 17:35:54 +0000 hourly 1 https://wordpress.com/ https://chongyangma.wordpress.com/2018/08/28/industry-coding-practices-for-research-projects/#comment-465 Sat, 01 Sep 2018 17:35:54 +0000 https://chongyangma.wordpress.com/?p=293#comment-465 […] by Industry Coding Practices for Research Projects | Chongyang Ma's Blog — August 27, 2018 @ 8:23 pm | […]

]]> https://chongyangma.wordpress.com/2011/03/17/merge-pdf-files-using-latex/#comment-169 Wed, 24 Aug 2016 00:48:46 +0000 https://chongyangma.wordpress.com/?p=121#comment-169 thanks!

]]> https://chongyangma.wordpress.com/2014/09/18/how-to-communicate-for-research-collaboration/#comment-117 Mon, 06 Oct 2014 04:36:38 +0000 https://chongyangma.wordpress.com/?p=285#comment-117 I won’t mind at all if people tell me my idea is stupid. =)

]]> https://chongyangma.wordpress.com/2013/10/06/disclaimer/#comment-115 Wed, 17 Sep 2014 17:49:07 +0000 https://chongyangma.wordpress.com/?p=201#comment-115 […] (Mainly for those junior students who are leading the projects. If disagree, please read the disclaimer.) […]

]]> https://chongyangma.wordpress.com/2011/03/17/merge-pdf-files-using-latex/#comment-95 Mon, 18 Nov 2013 16:48:55 +0000 https://chongyangma.wordpress.com/?p=121#comment-95 This is great! It’s not hard to make and run on its own, but I even made a Perl script that generates the .tex file and compiles it. Now I can doubleclick the script and the PDFs in my directory magically combine into the desired file:

use strict;
use warnings;

my $data = {};

### Set these variables to configure the output

### output filename sans extension. The extension will be pdf.
$data->{‘out’} = “combined_file”;

### files and pages from which this document will be created.
$data->{‘src’} = [ { ‘name’ => “src1.pdf”, ‘pages’ => “-” },
{ ‘name’ => “src2.pdf”, ‘pages’ => “1-3” },
{ ‘name’ => “src3.pdf”, ‘pages’ => “1-2” } ];

merge_pdfs( $data );

### merge_pdfs – merge the specified pdfs
sub merge_pdfs
{
my $dat = shift;

my $latex_pfn = “.\\”.$dat->{‘out’}.”.tex”;

### write the latex document
open( OUT_FD, “>”.$latex_pfn ) or die “cannot open $latex_pfn: $!\n”;

print OUT_FD ‘\documentclass{article}’.”\n”;
print OUT_FD ‘\usepackage{pdfpages}’.”\n”;
print OUT_FD ‘\begin{document}’.”\n”;
foreach my $file_hr ( @{$dat->{‘src’}} )
{
print OUT_FD ‘\includepdfmerge{‘.$file_hr->{‘name’}.”, “.$file_hr->{‘pages’}.”}\n”;
}
print OUT_FD ‘\end{document}’.”\n”;

close( OUT_FD );

### compile the latex document
my $pdflatex_exe = “C:\\miktex\\miktex\\bin\\pdflatex.exe”;
system( $pdflatex_exe.” “.$latex_pfn );

} ### merge_pdfs()

]]> https://chongyangma.wordpress.com/2013/10/06/disclaimer/#comment-89 Mon, 07 Oct 2013 02:02:19 +0000 https://chongyangma.wordpress.com/?p=201#comment-89 So which collaborators you consider to have “strong personality”? Probably not me; I am very gentle. =D =D =D =D =D =D =D =D

]]> https://chongyangma.wordpress.com/2011/10/07/steve-jobs-2005-stanford-commencement-address/#comment-87 Fri, 29 Mar 2013 14:08:45 +0000 https://chongyangma.wordpress.com/?p=154#comment-87 Excellent article. I’m experiencing a few of these issues as well..

]]> https://chongyangma.wordpress.com/2012/02/21/au-revoir-la-france/#comment-46 Tue, 21 Feb 2012 13:33:22 +0000 https://chongyangma.wordpress.com/?p=167#comment-46 马书记一路顺风！！

]]> https://chongyangma.wordpress.com/2011/03/17/merge-pdf-files-using-latex/#comment-39 Sun, 27 Nov 2011 21:02:14 +0000 https://chongyangma.wordpress.com/?p=121#comment-39 It just works. Thanks a lot!

]]> https://chongyangma.wordpress.com/2011/03/17/merge-pdf-files-using-latex/#comment-32 Thu, 08 Sep 2011 20:11:02 +0000 https://chongyangma.wordpress.com/?p=121#comment-32 This is very helpful. I just used it for one of my grant proposals!

]]>