.htaccess - Redirecting 301 non-existing files(pdf,doc) etc -

i've drupal cms based site in files regularly deleted. keep backlinks want non-existent pdf , word files redirect common page informing deletion.

is right way do? :

( picked 301 redirects on non existent image, pdf or url using .htaccess) :

rewriteengine on rewritebase /  rewritecond %{request_filename} !-d   # not dir     rewritecond %{request_filename} !-f   # not file rewriterule ^.*\.(pdf|doc|xls|xlsx|docx|zip)$ show-deleted-page.htm [r=301,l] 

here drupal .htaccess file needs work:

# # apache/php/drupal settings: #  # protect files , directories prying eyes. <filesmatch "\.(engine|inc|info|install|make|module|profile|test|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)$|^(\..*|entries.*|repository|root|tag|template)$">   order allow,deny </filesmatch>  # don't show directory listings urls map directory. options -indexes  # follow symbolic links in directory. options +followsymlinks  # make drupal handle 404 errors. errordocument 404 /index.php  # set default handler. directoryindex index.php index.html index.htm  # override php settings cannot changed @ runtime. see # sites/default/default.settings.php , drupal_environment_initialize() in # includes/bootstrap.inc settings can changed @ runtime.  # php 5, apache 1 , 2. <ifmodule mod_php5.c>   php_flag magic_quotes_gpc                 off   php_flag magic_quotes_sybase              off   php_flag register_globals                 off   php_flag session.auto_start               off   php_value mbstring.http_input             pass   php_value mbstring.http_output            pass   php_flag mbstring.encoding_translation    off </ifmodule>  # requires mod_expires enabled. <ifmodule mod_expires.c>   # enable expirations.   expiresactive on    # cache files 2 weeks after access (a).   expiresdefault a1209600    <filesmatch \.php$>     # not allow php scripts cached unless explicitly send cache     # headers themselves. otherwise scripts have overwrite     # headers set mod_expires if want caching behavior. may     # fail if error occurs in bootstrap process, , may cause     # problems if non-drupal php file installed in subdirectory.     expiresactive off   </filesmatch> </ifmodule>  # various rewrite rules. <ifmodule mod_rewrite.c>   rewriteengine on    # block access "hidden" directories names begin period.   # includes directories used version control systems such subversion or   # git store control files. files names begin period,   # control files used cvs, protected filesmatch directive   # above.   #   # note: works when mod_rewrite loaded. without mod_rewrite,   # not possible block access entire directories .htaccess, because   # <directorymatch> not allowed here.   #   # if not have mod_rewrite installed, should remove these   # directories webroot or otherwise protect them being   # downloaded.   rewriterule "(^|/)\." - [f]    # if site can accessed both , without 'www.' prefix,   # can use 1 of following settings redirect users preferred   # url, either or without 'www.' prefix. choose 1 option:   #   # redirect users access site 'www.' prefix,   # (http://example.com/... redirected http://www.example.com/...)   # uncomment following:    rewritecond %{http_host} !^www\. [nc]    rewriterule ^ http://www.%{http_host}%{request_uri} [l,r=301]   #   # redirect users access site without 'www.' prefix,   # (http://www.example.com/... redirected http://example.com/...)   # uncomment following:   # rewritecond %{http_host} ^www\.(.+)$ [nc]   # rewriterule ^ http://%1%{request_uri} [l,r=301]    # modify rewritebase if using drupal in subdirectory or in   # virtualdocumentroot , rewrite rules not working properly.   # example if site @ http://example.com/drupal uncomment ,   # modify following line:   # rewritebase /drupal   #   # if site running in virtualdocumentroot @ http://example.com/,   # uncomment following line:   # rewritebase /    # pass requests not referring directly files in filesystem   # index.php. clean urls handled in drupal_environment_initialize().   rewritecond %{request_filename} !-f   rewritecond %{request_filename} !-d   rewritecond %{request_uri} !=/favicon.ico   rewriterule ^ index.php [l]    # rules correctly serve gzip compressed css , js files.   # requires both mod_rewrite , mod_headers enabled.   <ifmodule mod_headers.c>     # serve gzip compressed css files if exist , client accepts gzip.     rewritecond %{http:accept-encoding} gzip     rewritecond %{request_filename}\.gz -s     rewriterule ^(.*)\.css $1\.css\.gz [qsa]      # serve gzip compressed js files if exist , client accepts gzip.     rewritecond %{http:accept-encoding} gzip     rewritecond %{request_filename}\.gz -s     rewriterule ^(.*)\.js $1\.js\.gz [qsa]      # serve correct content types, , prevent mod_deflate double gzip.     rewriterule \.css\.gz$ - [t=text/css,e=no-gzip:1]     rewriterule \.js\.gz$ - [t=text/javascript,e=no-gzip:1]      <filesmatch "(\.js\.gz|\.css\.gz)$">       # serve correct encoding type.       header set content-encoding gzip       # force proxies cache gzipped & non-gzipped css/js files separately.       header append vary accept-encoding     </filesmatch>   </ifmodule> </ifmodule>     <filesmatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf|mp3|mp4|dll|css|js|cgi)$"> errordocument 404 default </filesmatch> 

rewriteengine on rewritebase /  rewritecond %{request_filename} !-d   # not dir     rewritecond %{request_filename} !-f   # not file rewriterule ^.*\.(pdf|doc|xls|xlsx|docx|zip)$ http://example.com/show-deleted-page.htm [r=301,l] 

just tested out, , works. make sure include domain, since apache attempts find "physical" file @ url.