Issue to View PDF file in service portal

[Sanaa]

Hello experts,

I have a feature to embed a pdf file in the service portal page, but it doesn't work for all pdf files.
I use this script

HTML

<object data="{{data.base64}}"
type="application/pdf" width="100%" height="1000px" class="internal" id="pdfPreview">
<param name="view" value="fitH" />
</object>

server side

var gr = new GlideRecord('sys_attachment');
gr.addQuery('sys_id', attach_ID);
gr.query();
if (gr.next()) {

var sa = new GlideSysAttachment();
var binData = sa.getBytes(gr);
var base64 = GlideStringUtil.base64Encode(binData);
data.base64 = 'data:application/pdf;base64,' + base64 + '#toolbar=0';

}

Is there a problem in my code? Are there any suggestions to work around this problem?

thank you in advance for your help

Cordially

Sanaa

[Allen Andreas]

Hello,

Please provide more information as to when it works versus when it doesn't work.

If it works sometimes...then the code must be mostly fine.

Please mark reply as Helpful/Correct, if applicable. Thanks!

[Sanaa]

Hello Allen,

thank you for your reply, i faced this issue with file > 2,91 Mo.

I can't upload pdf in the portal but it works fine outside the portal.

I can download pdf and view it.

did you have any suggestion to resolve this issue.

Thank you.

Sanaa

[Marc Mouries]

You might be encountering one of these two issues:

1. The PDFs that don't work are larger in size, check 

The default maximum size limit for an attachment file that can be added to a record in the ServiceNow platform is 1024 MB for a new out-of-box instance.  This limit can be adjusted by following this procedure:

1. Login to the instance with an account having admin rights to the instance.
2. Using the Menu Navigator, browse to the following location on the instance: System Properties -> Security.
3. Locate the property on the page with the heading "Maximum file attachment size in megabytes".  Below this heading is a field in which the specified value can be typed to specify the number in MB of the maximum allowable attachment size.
4. Change the value ( you need to be in the Global scope) and test again

2. The PDFs that don't work have been created in a specific tool

Even though PDF is supposed to be a Portable format, some PDFs require a specific tool to view them. One example is PDF created in Adobe LiveCycle Designer. 

https://www.adobe.com/go/lc_xfa

If you can view the PDF outside of ServiceNow it will work inside ServiceNow

[Sanaa]

Hello Marc,

thank you for your reply,

even I change the size it doesn't work.

I can download pdf and view it outside the portal, but if i try inside the portal it doesn't work.

did you have any suggestion to resolve this issue.

Thank you.

Sanaa