can not open pdf file in sharepoint 2013

Leili vazietan 106 Reputation points
2021-04-04T12:23:47.317+00:00

hi

when i want to open pdf file in sharepoint 2013 i have this error :
HTTP Error 503. The service is unavailable.

I tested with all browsers . also I only have a problem with the PDF file (word , excel is ok).. I can download it but I can not open it when I click on it

pls hepl me
It's very important to me

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SharePoint
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  1. Echo Du_MSFT 17,116 Reputation points
    2021-04-05T07:40:36.377+00:00

    Hi @Leili vazietan ,

    Thanks for your reply.

    Please following steps:

    1.Start Internet Information Services (IIS) Manager

    2.Expand the server node

    3.Click on Application Pools

    4.The central pane is now populated with a list of application pools with a column for the 'status'. Identify any SharePoint application pools that are not running (that should be).

    84393-1.png

    5.Select the 'stopped' application pool and click the Start button from the Actions panel.

    84359-2.png

    Thanks,
    Echo Du

    =====================
    Updated Answer ===================

    Hi @Leili vazietan ,

    I re-studied your problem, as far as I understand you can only download PDF files and cannot view PDF files directly in the browser.

    Please perform the following troubleshooting:

    1.Check if the PDF is added to the web application’s trusted MIME Type List.

    Run the below command as an admin:

    Add-PSSnapin Microsoft.Sharepoint.Powershell  
$webApplication = Get-SPWebApplication("web_application_url")  
$webApplication.AllowedInlineDownloadedMimeTypes

    84687-1.png

    If application/pdf is not present in the list, it means that PDF is not added to trusted MIME types of the web application. Let’s add application/pdf to the trusted MIME Types List by running the below command.

    $webApplication = Get-SPWebApplication("web_application_url")  
$webApplication.AllowedInlineDownloadedMimeTypes.Add("application/pdf")  
$webApplication.Update()

    2.Update the settings in the Web Application level

    Open SharePoint Central Administration >> Manage web applications >> select the web application url and click on General Settings Drop-down menu, select General Settings >>
    from General Settings page, change the browser handling option from ‘Strict’ to ‘Permissive’.

    3.Update the settings in the Library level

    Open Document Library >> Library Settings >> Advanced settings >> select the radio button "Open in the browser".

    84578-4.png

    4.Check all application pools are started

    84655-5.png

    5.View SharePoint ULS logs to get detailed information

    Note: In IE, you need click on Open. In Chrome, you can click PDF files directly to view it.

    84648-6.png

    Thanks,
    Echo Du

    ===============

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  1. Leili vazietan 106 Reputation points
    2021-04-05T10:37:58.25+00:00

    hi

    Thanks for your help, but everything on the site works properly. I only encounter this error to open the PDF file (PDF files uploaded to the site give this error when I open it, but they can be downloaded without any problems

    i checked the application pool ans was started

    pls help me