To add or link to an attachment, an author edits a page to include the markup "
Attach:" followed by a name of an attachment (e.g., "
Attach:resume.pdf"). When the page is displayed, the
Attach: markup becomes one of the following:
- A link to the named attachment (if uploaded, ie already in the upload directory)
- A link to a form whereby the author can specify a file to be uploaded and used as the new attachment (if not yet uploaded, ie not in the upload directory)
- If the attachment is an image file with an extension such as .gif, .jpeg, or .png, it is displayed as an image.
The behaviour of links can be modified to
- prevent an image attachment from displaying as an image, place it in double brackets (e.g.,
- have a link to an attachment appear without the "
Attach:" at the beginning of the link, use
Attachments on other pages and groups
To link to an uploaded attachment (image or file) from another group, you simply refer the group itself (make sure "Groupname" has the dot in it).
Attach:Groupname./file_name.ext(note the dot after the groupname)
If Pm Wiki is configured with an individual directory per page use
Attach:Pagename/file_name.ext(Pagename is in the same Wiki Group)
Names with spaces
To link to a filename with spaces in it use the bracket link notation, eg
[[Attach:a filename with spaces.txt]]
To attach an image file with spaces in the name so that is shows as an image use one of these
[[#blank | Attach:image space.jpeg]]
[[#1 | Attach:image space.jpeg]]
Listing Uploaded Files On A Page
To list files that have been uploaded, use the markup:
This will list attachments to the current group or page, depending whether attachments are organised per group or per page; each instance includes a link to the attachment for viewing or downloading. A list of attachments is also shown as part of the uploads page form.
Upload Form / Upload Replacement
One can go directly to the upload form by appending "?action=upload" to the URI for any page that has file uploads enabled by the Wiki Administrator. Replace a file by simply uploading a new version of the file with the same name.
- Be sure to clear your browser cache after replacing an upload. Otherwise, it may appear that the original upload is still on the server.
If you put
$EnableUploadVersions=1; in your
local/config.php, the old versions of the same files are renamed and not removed.
Type and Size Restrictions
For security reasons, the upload feature is disabled when Pm Wiki is first installed.
When enabled uploads are restricted as to the types and sizes of files that may be uploaded to the server (see UploadsAdmin). Pm Wiki's default configuration limits file sizes to 50 kilobytes and file extensions to common types such as ".gif", ".jpeg", ".doc", ".txt", and ".pdf".
By default the upload allows the following extensions:
'gif','jpg','jpeg','png','bmp','ico','wbmp', # images
'mp3', 'au','wav', # audio 'mpg','mpeg','wmf','mov','qt','avi', # video 'zip', 'gz','tgz','tar','rpm','hqx','7z' # archives 'odt','ods','odp', # OpenOffice.org 'doc','ppt','xls','exe','mdb', # MSOffice 'pdf','psd', 'ps','ai','eps', # Adobe 'htm','html','fla','swf', # web stuff 'txt','rtf','exe','tex','dvi','' # misc
At present uploaded files can only be deleted from the server by the wiki administrator. Any uploads-authorized user may over-write an existing file by uploading another of the same name and extension to the same location.
The administrator may remove an uploaded file by accessing the server via ftp (or via a control panel, if the host offers such a feature). The recipe Cookbook:Attachtable allows the deletion of the files from the wiki.
Use parentheses, as in
[[(Attach:)file.doc]]. There is also a configuration change that can eliminate the
Attach: -- see Cookbook:AttachLinks.
Why can't I upload files of size more than 50kB to my newly installed Pm Wiki?
Out of the box Pm Wiki limits the size of files to be uploaded to 50kB. Add
$UploadMaxSize = 1000000; # limit upload file size to 1 megabyte
Why does my upload exit unexpectedly with "Incomplete file received"?
You may be running out of space in a 'scratch' area, used either by Pm Wiki or by PHP. On *nix, check that you have sufficient free space in /tmp and /var/tmp.
How do I make it so that the upload link still allows one to make another upload (if someone wants to replace the old version of a file with a newer version, for example). Currently you only get the upload link when there is no file in the upload directory.
Use the Attach page action, and click on the delta symbol (Δ) shown against each of files listed. If you can't see the attach action either uploads are not enabled, you are not authorized to upload, or the attach action has been commented out or is missing. See also available actions.
How do I hide the "Attach:" for all attachments
See Cookbook:AttachLinks, note that this does not currently work for
[[Attach:my file.ext]] .
How to avoid problems with non-ASCII characters in attachment names (i.e. "Zażółć geślą jaźń.doc")?
= "-\w. !=+#"; # allow exclamations, equals, plus, and hash
How can I link a file that have a 4-letter file extension such like 'abc.pptx'?
How can I prevent others from using the url's of my images on their site
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