Why does Adobe version XI not open internet PDF files?

I can open internet PDF files on my Ipad but not on my desktop. What's the fix? thanks!

What is your computer system (e.g. Windows 7, Mac OS Lion)?
What is your browser?
Here's a link to a really dull file - does it do the same? http://www.adobe.com/security/pdfs/riskcompliance_faq.pdf

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Adobe Reader could not open a pdf file - either not supported file type or file damaged

On March 5th, I started getting the Adobe Reader error message "Adobe Reader could not open a pdf file because it is either not supported file type or the file has been damaged.
I get this when I try to open the pdf file as an attachment in Outlook 2013 from my G-Mail account. If I save the attachment and then try to open the pdf document, I get the same error4.
I get this error message with every pdf file that now comes to me in Outlook.
If I log on to my G-Mail I am able to open the pdf document. If I also save the attachment to my computer, I do not get the error message when I open the pdf file. This would suggest the file is okay
This would lead me to believe the problem maybe with Outlook.
I'm using Adobe Reader XI v11.0.10
I'm using Windows 8.1
Is anyone encountering this same issue with outlook?

I copied it again. Do you see it? BTW, how do I set privacy? (I'm new at this)
I opened with two different notepads and got different information.here it is from Windows Notepad. First few lines are:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">td img {display: block;}</style>
</head>
Here it is from MS Notepad:
<HTML><HEAD><style>.ending {font-family: Calibri; font-size: 18px;}</style><BODY><TABLE><TR><TD colspan=100%><a href="http://www.trulynolen.com/questionnaire?l=14115468&o=141050070&z=85087-7515"><img src=http://newsletter.tnolen.com/email/service.png border=no></a></TD></TR><TR><TD align=center class="ending">If you would not like to receive email communication from Truly Nolen in the future, please <a href="http://newsletter.tnolen.com/unsubstart.asp?b=14115468&z=85087-7515&e=[email protected]/unsubstart.asp?b=14115468&z=85087-7515&e=[email protected]">click here</a></TD></TR></TABLE></BODY></HTML>

How do i Restore Preview as my default viewer when using Safari,seems adobe has hi jacked Safari,if i uninstall adobe safari will not open any pdf files.

How do i restore Preview as my default viewer.
Seems adobe has hi-jacked Safari and and opens using abobe not preview.
Have uninstalled adobe but safari then will not display any pdf files.
Preview still works fine to view existing downloaded files.

Niac --
What kind of files? PDFs? or Others as well?
If you want Preview to open all PDFs, then find a PDF on your HD.
Highlight it, and then press the Apple/Comand key along with th letter " i " key.
When the window comes up, look down to the "Open with" line, and change it from Adobe to Preview.
Then look slightly below, and select "Change All."
Now, all PDFs should open with Preview.

Why does Adobe reader on iPad lock unlocked pdf files on move from computer

I Have copied several pdf files, which I have made, from my laptop to my iPad. On my laptop they are unlocked and I can Add text etc. On the iPad they become locked and I cannot do this. Why? How do I stop this so that's can have u locked pdf files on my iPad.

Rbradford,
Did you add document restrictions or an "Open Password" protection to your PDF documents? When you add any of document security features to a PDF document, it will be encrypted.
Currently, Adobe Reader mobile products do not support adding annotations to encrypted PDF documents or filling out encrypted PDF forms, for example.
To check whether your PDF document is encrypted
Open your PDF document in the desktop version of Adobe Reader or Acrobat Pro.
Select File > Properties... from the menu. (Or press Command+D for Mac, Control+D for Windows.)
Select the Security Tab.
Click the Show Details... button (if enabled).
Check the last entry in the Document Security dialog.
If this is not the case, please send one of your PDF documents to [email protected] and include the link to this forum post (https://forums.adobe.com/thread/1593031) in your email message for reference.
We will inspect the PDF document and diagnose the cause of the problem. Thank you.

Why does my iPad 1 not open documents in pages from my mac after downloading update on pages on mac?

Why does my iPad 1 not open documents from my updated mac-pro laptop pages since i updated the mac. Have updated latest pages for iPad 1 it could and still not able to open docs as i could before update on mac-pro

The most recent version of Pages that you can run on the iPad 1, running iOS 5.1.1, is not compaible with the newest version of pages on the Mac.
If you had the old version of Pages on your Mac, and off hand I can't remember what version it was, you should still be able to use that version and then it will be compatible with the Pages app on the iPad. I updated to the newest version of Pages some time back but was able to keep the older version as well.

Why does one particular website not open on my ipad*,

Why does one particular website not open on my ipad, when it alwasys did, but the same website is available upstairs on my PC, I'm using the same remote connection but for some reason it doesn't want to open. I;ve tried refreshing etc... but nothing works.
When I bring the ipad to work the website in question opens OK.
Any suggestions??
Thanks

Try updating via iTune (computer)

Why can't I open a pdf file on my desktop? I keep getting this message: Adobe Reader could not open '8pdk_96_4.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and w

Why can't I open a pdf file on my desktop? I have Adobe Reader and running OS 10.10.1 I keep getting the same message: "Adobe Reader could not open '8pdk_96_4.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded)."

I tried that.
I saved the file 8pdk_96_4.pdf to my desktop and tried to open it using Adobe Reader but I get the same message: Adobe Reader could not open '8pdk_96_4.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

Help. How do I fix this? Have been using adobe reader opening this template for months and now all of the sudden its not working.Adobe Reader could not open 'NSCAAInteractiveSessionPlan.pdf' because it is either not a supported file type or because the

I coach youth soccer and use a PDF template to save my sessions in. Today I got this message when trying to open one of my sessions.
Adobe Reader could not open 'NSCAAInteractiveSessionPlan.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).
How can I fix this? I have not done anything I don't normally do.

What is your operating system? Reader version?

After saved to computer, Adobe Reader could not open 'filename.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

After saved to computer, Adobe Reader could not open 'filename.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

What is your operating system? Reader version?
Saved from where? What is the file size of the saved document?

Adobe Reader could not open 'cpd39346.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

I use a Macbook Pro w/ OS X. I am unable to open a .pdf file downloaded from the internet, Adobe always shows "@Adobe Reader could not open 'cpd39346.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

Are you trying to open a pdf within a browser (clicking a link)? If so, which browser?

Adobe Reader could not open 'xyz.pdf'

Hi,
From my project I download pdf file. PDf file download in particular directory is successfully.
But when I open that PDF then I got Error Message.
"Adobe Reader could not open 'XYZ.pdf' because it is either not a supported file type or because the file has been damaged (for example. it was sent as an email attachment and wasn't correctly decoded). "
so what's problem? how can fix this bug?
My file download code
                    this.response.setHeader("Content-Disposition", "attachment;filename="+fileName+".pdf");
                          fileData = new byte[(int)file.length()];
                          in = new ByteArrayInputStream(fileData);
                        byte[] outputByte = new byte[4096];
                        //copy binary contect to output stream
                        while(in.read(outputByte, 0, 4096) != -1){
                            outputStream.write(outputByte, 0, 4096);
                        in.close();
                        outputStream.flush();
                        outputStream.close();

Is the downloaded file a valid PDF file? Just by naming something *.PDF does not make it a PDF file.

Adobe Reader could not open InDesign PDF...

Just installed InDesign. I can "EXPORT" a PDF, but cannot "PRINT" a PDF. Error message says: "Adobe Reader could not open your PDF because it is either not a supported file type or because the file has been damaged. (For example, it was sent as an email attachment and not properly decoded)". What does this mean? My PDF's print from all other programs on my computer. Running Windows 7.

I'm having the same issue when exporting a pdf from InDesign CS6 and trying to open the resulting pdf...

Adobe Reader will not open embedded PDFs in Safari with Yosemite

Adobe Reader will not open embedded PDFs in Safari with Yosemite installed

That looks like a perfectly good PDF, but since it's trying to open in Microsoft Word, that means your file association for .pdf files is incorrect. You should change it to point to Adobe Reader instead of Word.
If you are on Windows, see http://windows.microsoft.com/en-us/windows/change-file-open-program#1TC=windows-7

I loaded adobe reader and I can not open a pdf file. It keeps telling me I need adobe acrobat.

I loaded adobe reader and I can not open a pdf file. It keeps telling me I need adobe acrobat.

What is your operating system?
You don't need Acrobat to view PDF files; can you post a screenshot of that message?
Also, is this a local or online PDF? If online, in what browser?

Adobe Reader could not open 'filename.pdf'" because it is either not a supported file type...

I have a website that holds 23 different PDF's. They all download fine and open correctly when downloading from a Mac computer. They even download and open fine from a Mobile Phone. However my client is getting an error over and over again. I have tested it out and this is what I have come up with.
Error:
Adobe Reader could not open 'filename.pdf'" because it is either not a supported file type or because the file has been corrupted (for example, it was sent as an email attachment and wasn't correctly decoded)
I have resaved the PDF's to be compatible with Reader 6.
Works fine with
All Mac's using either Firefox, Chrome or Safari using Pro and Reader
iPhone downloads using iBook
PC's when downloading from Firefox viewing in Reader 9
PC's when downloading from IE 6.0 view on Reader 8
Error Message When
PC when downloading from IE 7 viewing on Reeder 9
PC when downloading from IE 8 viewing on Reader 9
Here goes the URL when the files resides.
Please help. I can not find a solution.

Hi i have solved the ie bug creating the pdf phisically, this is the code i use:
$hostname = "XXXXXX";
$database = "XXXXX";
$username = "XXXXX";
$password = "XXXXXX";
$db = mysql_pconnect($hostname, $username, $password) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database, $db);
$query_rs_docs = "SELECT * FROM doc WHERE doc_name='".$_GET['doc_name']."'";
$rs_docs = mysql_query($query_rs_docs, $db) or die(mysql_error());
$row_rs_docs = mysql_fetch_assoc($rs_docs);
$totalRows_rs_docs = mysql_num_rows($rs_docs);
$t_pdf = fopen("/path to doc folder/doc/".$row_rs_docs['doc_name'], "w+");
fwrite($t_pdf, $row_rs_docs['doc_file']);
fclose($t_pdf);
header('Location: http://www.portalesardegna.com/doc/'.$row_rs_docs['doc_name']);
the db table (doc_name must contain the .pdf extension):
CREATE TABLE IF NOT EXISTS `doc` (
`doc_ID` int(10) NOT NULL auto_increment,
`doc_name` varchar(255) NOT NULL,
`doc_file` longblob NOT NULL
PRIMARY KEY (`doc_ID`)
) ENGINE=MyISAM;
Message was edited by: Portale Sardegna

Why does Adobe version XI not open internet PDF files?

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