Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

11.0.03.37 27.17%
10.1.8.24 10.87%
10.1.7.27 13.04%
10.1.0.534 11.96%
9.5.5.316 2.17%
9.3.3.177 1.09%
9.3.0.148 2.17%
8.3.1.289 4.35%
8.2.2.217 1.09%
8.1.0.0 9.78%
8.0.0.0 3.26%
8.0.0.0 1.09%
7.0.0.0 10.87%
7.0.0.0 1.09%

PDFShell.dll

Adobe PDF Shell Extension by Adobe Systems (Signed)

Remove PDFShell.dll
Version:   7.0.0.0
MD5:   4b0991cd076b617a2231b19a6663c1c9
SHA1:   d0ca24846feac44c5411ff09d4fdc2ece6a5ae55
SHA256:   16fb993de17a9dd82b207972204f17da4023fabe35a818444b1396b15ab069df

What is PDFShell.dll?

Adobe PDF Shell Extension for Adobe Acrobat Reader is a shell extension that is executed by Windows Explorer to retrieve metadata about the selected PDF file. The Adobe shell extension adds this extra data so that users can see details about a file at a glance in Windows Explorer. Details include Title, Author, Subject, Size and thumbnail image; details that typically occur in tooltips.

About PDFShell.dll (from Adobe Systems)

When you install Acrobat or Adobe Reader on a system with a browser, you automatically configure the browser to open PDF files within the browser window. Acrobat and Adobe Reader install ActiveX plug-

DetailsDetails

File name:pdfshell.dll
Publisher:Adobe Systems, Inc.
Product name:Adobe PDF Shell Extension
Description:PDF Shell Extension
Typical file path:C:\Program Files\common files\adobe\acrobat\activex\pdfshell.dll
File version:7.0.0.0
Size:108 KB (110,592 bytes)
Certificate
Issued to:Adobe Systems
Authority (CA):VeriSign
Effective date:Sunday, September 27, 2009
Expiration date:Sunday, November 4, 2012
Digital DNA
PE subsystem:Windows GUI
Entropy:5.272895
File packed:No
Code language:Microsoft Visual C++ 9.0
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Adobe Systems Incorporated
7% remove
Adobe Acrobat and Reader are a set of applications designed to view, create, manipulate, print and manage files in Portable Document Format (PDF). Acrobat and Reader are widely used as a method of presenting information with a fixed layout similar to a paper publication. Adobe also allows Acrobat plug-ins to be developed by third parties, which can add extra functions to the Acrobat program.
Adobe Systems Incorporated
9% remove
Adobe Acrobat and Reader are a set of applications designed to view, create, manipulate, print and manage files in Portable Document Format (PDF). Acrobat and Reader are widely used as a method of presenting information with a fixed layout similar to a paper publication. Adobe also allows Acrobat plug-ins to be developed by third parties, which can add extra functions to the Acrobat program.
AIG S.L.
2% remove
MagTek, Inc.
18% remove
Microsoft Corporation
7% remove
Microsoft Corporation
3% remove
TORO
8% remove

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Microsoft Windows XP 74.60%
Windows 7 Ultimate 7.94%
Windows 7 Professional 4.76%
Windows 7 Home Premium 4.76%
Windows Vista Home Basic 1.59%
Windows 8 1.59%
Windows Vista Home Premium 1.59%
Windows XP Professional 1.59%
Windows 7 Starter 1.59%

Distribution by countryDistribution by country

United States installs about 32.76% of Adobe PDF Shell Extension.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 39.44%
American Megatrends 12.68%
Compaq 8.45%
Hewlett-Packard 8.45%
ASUS 8.45%
GIGABYTE 7.04%
Acer 4.23%
NEC 2.82%
Intel 2.82%
Lenovo 2.82%
Toshiba 2.82%
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