.PDF File

File extension: PDF

File type: Portable Document Format

Do you have speed issues?
First check your registry for invalid entries.

Notes about the PDF file extension:

Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The PDF file type is primarily associated with 'Acrobat' by Adobe Systems Incorporated.

Adobe Acrobat is a family of computer programs developed by Adobe Systems, designed to view, create, manipulate and manage files in Adobe's Portable Document Format (PDF).

Some software in the family are commercial, and some are free. Adobe Reader (formerly Acrobat Reader) is available as a no-charge download from Adobe's Web site, and allows the viewing and printing of PDF files. Acrobat and Reader are widely used as a way to present information with a fixed layout similar to a paper publication.

The PDF format has become a standard for document transfer between computer architectures. A PDF file retains formatting for the file being transmitted. Free viewers are available at the Adobe website and other locations. Starting in 2007, PDF files sent as attachments started to show up as spam. When the PDF file is opened, the spammed ad is shown.

Detailed information for file extension PDF:

Primary association: Acrobat

Company: Adobe Systems Incorporated

Mime type: application/pdf, application/x-pdf, application/acrobat, applications/vnd.pdf, text/pdf, text/x-pdf

Identifying characters Hex: 25 50 44 46 2D 31 2E , ASCII: %PDF-1.

Other applications associated with file type PDF:

Analyser Protocol Definition
ArcView (Preferences Definition File) by ESRI Related links: GIS Info
Ed-Scan 24-bit Graphic File
Netware Printer Definition File
P-CAD (Database Interchange Format) by Altium Limited
Package Definition File(Inventory-related) MS Package Definition file: MS Systems Management Server
Systems Management Server (SMS) (Package Description File) by Microsoft CorporationWith SMS you can provide your organization a change and configuration management solution to deliver relevant software and updates to users of Microsoft and third-party applications.

Ventura Publisher (EPS-variation Page) by Corel Corporation

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'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database

Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension PDF click this link to expand/hide the additional area.

System Info for File Extension .PDF

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Acrobat Reader 5.0
EXEFile: AcroRd32.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Acrobat Reader 5.1
EXEFile: AcroRd32.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Adobe Acrobat 5.0
EXEFile: Acrobat.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Adobe Acrobat 6.0
EXEFile: Acrobat.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Adobe Reader 6.0
EXEFile: AcroRd32.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Portable Document Format
EXEFile: Acrobat.exe

ProgramID: AcroExch.Document, FileType: Adobe Acrobat Document, AppName: Portable Document Format
EXEFile: AcroRd32.exe

ProgramID: aliddy, FileType: PDF File, AppName: Jaws PDF Editor
EXEFile: pdfeditor.exe

ProgramID: CorelDRAW.Graphic.11, FileType: CorelDRAW 11.0 Graphic, AppName: CorelDRAW(R)
EXEFile: coreldrw.exe

ProgramID: GraphicsConverterPro.pdf, FileType: Portable Document Format, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: PhotoshopElements.PDFFile, AppName: Adobe Photoshop Elements
EXEFile: photoshopelements.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%r\Adobe\Acrobat 6.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: c:\lotus\acroread\acroread.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat Reader 5\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat 7.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: D:\DOWNLOADS\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\adobe reader\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: C:\AddOn\AcrobatReader\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: d:\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0.1\Reader\AcroRd32.exe %1

ProgramID: ft000002
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 8.0\Acrobat\Acrobat.exe

ProgramID: Photoshop.PDFFile.8
EXEFile: %ProgramFiles%\Adobe\Photoshop CS\Photoshop.exe %1

ProgramID: pdffile
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: C:\ACROREAD\ACROREAD.EXE %1

ProgramID: AcroExch.Document
EXEFile: C:\Acrobat3\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Curricular\Adobe\Acrobat 6.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Adobe Acrobat 6.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 7.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 7.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 7.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0\installed programs\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0\Acrobat\Acrobat.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0 CE\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0 CE\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 4.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 4.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 4.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat 6.0\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat 6.0.2 CE\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat 5.0\Acrobat\Acrobat.exe %1

ProgramID: DocuCom.PDFPlus.Document
EXEFile: %ProgramFiles%\Nitro PDF\bin\PlusShell.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.0 ME\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: D:\Acrobat3\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 4.0 ME\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat_FR\reader\AcroRd32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%r\Adobe\Acrobat 5.0\Reader\AcroRd32.exe %1

ProgramID: pdffile
EXEFile: %ProgramFiles%\Ghostgum\gsview\gsview32.exe %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Reader 8.0\Reader\AcroRd32.exe

ProgramID: PhotoshopElements.PDFFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 2\PhotoshopElements.exe %1

ProgramID: FoxitReader.Document
EXEFile: C:\DOCUME~1\Popper\Desktop\FOXITR~1.EXE %1

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITP~1\FOXITR~1.EXE %1

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Internet\Browsers\Adobe\Acrobat 7.0\Reader\AcroRd32.exe %1

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITR~1.EXE

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Adobe Acrobat 7.0\Acrobat\Acrobat.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 5.1\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat\Acrobat\Acrobat.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITS~1\FOXITR~1\FOXITR~1.EXE

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%r\Adobe\Acrobat 7.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe Reade 7.0.5\Reader\AcroRd32.exe

ProgramID: PhotoshopElements.PDFFile.4
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 4.0\PhotoshopElementsEditor.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\Foxit\Foxit.exe

ProgramID: CIBepdf.Document
EXEFile: %ProgramFiles%\CIBSOF~1\CIBPDF~1\CIBepdf.exe

ProgramID: Photoshop.PDFFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 6.0\Photoshp.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXIT-~1.162\FOXITR~1.EXE

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0 CE\Acrobat\Acrobat.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\Foxit Software\Foxit Reader\Foxit Reader.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITR~1\FOXITR~1.EXE

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\!BackupC\prgs\FOXITS~1\FOXITR~1\FOXITR~1.EXE

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Acrobat Reader 7.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat\Acrobat.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 7.0\Reader\AcroRd32.exe

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 6.0 ME\Acrobat\Acrobat.exe

ProgramID: PDF-XChangeViewer.1
EXEFile: %ProgramFiles%\Tracker Software\PDF-XChange Viewer\pdf-viewer\PDFXCview.exe

ProgramID: pdffile
EXEFile: %ProgramFiles%\Visagesoft\pdfeditor\vspdfeditorpro.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITP~1\PDFREA~1.EXE

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITR~1\FOXITR~1.EXE

ProgramID: NitroPDF.Document
EXEFile: %ProgramFiles%\Nitro PDF\Professional\NitroPDF.exe

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\FOXITS~1\FOXITP~1\FOXITR~1.EXE

ProgramID: FoxitReader.Document
EXEFile: %ProgramFiles%\Foxit\FOXITR~1.EXE

ProgramID: AcroExch.Document
EXEFile: %ProgramFiles%\Adobe\Acrobat 9.0\Acrobat\Acrobat.exe

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