DOCUMENT:Q178241 22-FEB-2002 [exchange] TITLE :XCLN: Adobe Acrobat PDFs Encoded in Different Formats PRODUCT :Microsoft Exchange PROD/VER::3.1,3.11,4.0,5.0,8.0,8.01,8.02,8.03 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Outlook, Exchange Server Edition, version 8.0, used with: - the operating system: Microsoft Windows versions 3.1, 3.11 - Microsoft Exchange Windows NT client, versions 4.0, 5.0 - Microsoft Exchange Windows 95/98 client, versions 4.0, 5.0 - Microsoft Outlook 97, versions 8.0, 8.01, 8.02, 8.03 ------------------------------------------------------------------------------- SYMPTOMS ======== When you send an Adobe version 1.2 Portable Document Format (PDF) file (created by Adobe 3.0 Writer) as an attachment with an Exchange client, the attachment is encoded as "quoted printable." However, a version 1.1 PDF file will get encoded as "base64." PDF files (Adobe Portable Document Format) are the format in which documents are saved for viewing and transfer by Acrobat Reader and Acrobat Exchange for Macintosh and Windows. The encoding from the Microsoft Exchange client is determined based on the first 4 KB content of the attachment. Adobe changed the format between versions 1.1 and 1.2 PDF files. The 1.1 PDF version is based on Base64 encoding; the version 1.2 PDF is based on quoted printable encoding. If the receiving system is not capable of understanding the "quoted printable" encoding, it may cause problems. WORKAROUND ========== If the customer system is incapable of handling "quoted printable" encoding, use only version 1.1 PDF files. Another possible solution is to compress the files before sending them with a third-party compression utility such as Winzip. For additional information about workarounds, please see the following article in the Microsoft Knowledge Base: Q182307 XADM: Text Attachments Appear Corrupted Additional query words: XCLN Adobe PDF Attachments ====================================================================== Keywords : Technology : kbOutlookSearch kbExchangeSearch Version : :3.1,3.11,4.0,5.0,8.0,8.01,8.02,8.03 Issue type : kbbug Solution Type : kbnofix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.