how to view pdf in c# : How to extract images from pdf file Library control class asp.net web page winforms ajax cpd3928310-part1254

ScanningisSlow
Ifscanningbecomesslow,trythesesolutions:
• Scanyouroriginalatalowerresolution,ifpossible.
• Makesureyoursystemmeetstherequirementsforyouroperatingsystem.Ifyouarescanningahigh-
resolutionimage,youmayneedmorethantheminimumrequirements,suchasaHi-SpeedUSBport.
Ifnecessary,increaseyoursystem'smemory.
• Ifyouarerunningvirusprotectionorothersecuritysoftware,excludetheTWAIN.logfilesfrom
monitoringorsettheTWAIN.logfileasreadonly(Windows).Seeyourvirusprotectionorsecurity
softwareinstructionsfordetails.TheTWAIN.logfileissavedinthefollowinglocations:
• WindowsXP:C:\DocumentsandSettings\(username)\LocalSettings\Temp
• Windows(otherversions):C:\Users\(username)\AppData\Local\Temp
• IfyouarescanningusingDIGITALICETechnology,turnoffthefeature;scanningtakeslongerusing
DIGITALICETechnology.
Parenttopic:SolvingScanningProblems
Relatedtasks
RemovingDustandScratchMarksUsingDIGITALICETechnology
SolvingScannedImageQualityProblems
Checkthesesectionsifascannedimageonyourcomputerscreenhasaqualityproblem.
ImageConsistsofaFewDotsOnly
LineofDotsAppearsinAllScannedImages
StraightLinesinanImageAppearCrooked
ImageisDistortedorBlurry
ImageColorsarePatchyattheEdges
ImageisTooDark
BackofOriginalImageAppearsinScannedImage
RipplePatternsAppearinanImage
ImageisScannedUpside-Down
ScannedImageColorsDoNotMatchOriginalColors
CharactersarenotRecognizedDuringConversiontoEditableText(OCR)
ScanAreaisNotAdjustableinThumbnailPreview
ScannedImageEdgesareCropped
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How to extract images from pdf file - Select, copy, paste PDF images in C#.net, ASP.NET, MVC, Ajax, WinForms, WPF
Support PDF Image Extraction from a Page, a Region on a Page, and PDF Document
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How to extract images from pdf file - VB.NET PDF Image Extract Library: Select, copy, paste PDF images in vb.net, ASP.NET, MVC, Ajax, WinForms, WPF
Support PDF Image Extraction from a Page, a Region on a Page, and PDF Document
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FilmorSlideScanningDoesNotWork
NegativeFilmPreviewImageLooksIncorrect
RingPatternAppearsinScannedFilmorSlides
Parenttopic:SolvingProblems
ImageConsistsofaFewDotsOnly
Ifyourscannedimageconsistsonlyofafewdots,trythesesolutions:
• Makesureyouplacedyouroriginalforscanningfacingthecorrectway.
• IfyouarescanningusingtheEpsonScanBlack&Whitesetting,adjusttheThresholdsettingand
scanagain.
Parenttopic:SolvingScannedImageQualityProblems
LineofDotsAppearsinAllScannedImages
Ifalineofdotsappearsinallyourscannedimages,cleanthescannerglasswithasoft,dry,lint-free
clothoruseasmallamountofglasscleaneronthecloth,ifnecessary.Papertowelsarenot
recommended.
Caution:Donotsprayglasscleanerdirectlyonthescannerglass.
Parenttopic:SolvingScannedImageQualityProblems
Relatedtasks
CleaningYourScanner
StraightLinesinanImageAppearCrooked
Ifstraightlinesinanoriginalappearcrookedinascannedimage,makesuretoplaceyouroriginal
straightwhenyouscanit.
Parenttopic:SolvingScannedImageQualityProblems
Relatedtasks
PlacingOriginalsontheScannerGlass
102
C# PDF Text Extract Library: extract text content from PDF file in
Ability to extract highlighted text out of PDF control provides text extraction from PDF images and image extracting PDF text to another PDF file, TXT and SVG
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VB.NET PDF Text Extract Library: extract text content from PDF
Extract highlighted text out of PDF document. control provides text extraction from PDF images and image extracting PDF text to another PDF file, and other
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ImageisDistortedorBlurry
Ifascannedimageappearsdistortedorblurry,trythesesolutions:
• Makesureyouroriginalisnotwrinkledorwarped.Thismaypreventtheoriginalfromlayingflatonthe
scannerglass.
• Donotmoveyouroriginaloryourproductduringscanning.
• Yourproductwillnotoperateproperlywhiletiltedatanangle.Placeitonaflat,stablesurfacethat
extendsbeyondthebaseoftheproductinalldirections.
• AdjusttheseEpsonScansettings(ifavailable)andtryscanningagain:
• SelecttheUnsharpMasksetting.
• AdjusttheAutoExposuresetting.
• IncreasetheResolutionsetting.
Parenttopic:SolvingScannedImageQualityProblems
ImageColorsarePatchyattheEdges
Ifyouarescanningathickorwarpedoriginal,coveritsedgeswithpapertoblockexternallightasyou
scanit.
Parenttopic:SolvingScannedImageQualityProblems
ImageisTooDark
Ifyourscannedimageistoodark,trythesesolutions:
• AdjusttheseEpsonScansettings(ifavailable)andtryscanningagain:
• AutoExposure
• Brightness
• HistogramAdjustment
• Checkthebrightnessandcontrastsettingsofyourcomputermonitor.
Parenttopic:SolvingScannedImageQualityProblems
BackofOriginalImageAppearsinScannedImage
Ifanimagefromthebackofathinoriginalappearsinyourscannedimage,placeapieceofblackpaper
onthebackoftheoriginalandscanitagain.
Parenttopic:SolvingScannedImageQualityProblems
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VB.NET PDF File Compress Library: Compress reduce PDF size in vb.
Reduce image resources: Since images are usually or large size, images size reducing can help to reduce PDF file size effectively.
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C# PDF File Compress Library: Compress reduce PDF size in C#.net
Reduce image resources: Since images are usually or large size, images size reducing can help to reduce PDF file size effectively.
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RipplePatternsAppearinanImage
Youmayseearipplepattern(calledamoiré)inscannedimagesofprinteddocuments.Thisiscaused
byinterferencefromdifferingpitchesinthescanner'sscreenandyouroriginal'shalftonescreen.To
reducethiseffect,adjusttheseEpsonScansettings(ifavailable)andtryscanningagain:
• SelecttheDescreeningsetting.
• SelectalowerResolutionsetting.
Parenttopic:SolvingScannedImageQualityProblems
ImageisScannedUpside-Down
YourproductscansusingtheAutoPhotoOrientationsetting.Thissettingchecksthepreviewimage
forfaces,thesky,andotherfeatures,andthencorrectlyrotatesthephotowhenitisscanned,if
necessary.Ifyourphotoisnotorientedcorrectlyusingthisoption,deselecttheAutoPhotoOrientation
settingandscanagain.
Parenttopic:SolvingScannedImageQualityProblems
ScannedImageColorsDoNotMatchOriginalColors
Printedcolorscanneverexactlymatchthecolorsonyourcomputermonitorbecauseprintersand
monitorsusedifferentcolorsystems:monitorsuseRGB(red,green,andblue)andprinterstypicallyuse
CMYK(cyan,magenta,yellow,andblack).
Checkthecolormatchingandcolormanagementcapabilitiesofyourcomputer,displayadapter,andthe
softwareyouareusingtoseeiftheyareaffectingthepaletteofcolorsyouseeonyourscreen.
Toadjustthecolorsinyourscannedimage,adjusttheseEpsonScansettings(ifavailable)andtry
scanningagain:
• ChangetheImageTypesettingandexperimentwithdifferentcombinationsofthenextsettings.
• AdjusttheToneCorrectionsetting.
• AdjusttheAutoExposuresetting.
Parenttopic:SolvingScannedImageQualityProblems
CharactersarenotRecognizedDuringConversiontoEditableText(OCR)
IfcharactersinyourscannedimagesarenotrecognizedduringOCRconversion,trythesesolutions:
• Makesureyouroriginalisstraight.
104
VB.NET PDF File Merge Library: Merge, append PDF files in vb.net
VB.NET Components to combine various scanned images to PDF, such as tiff, jpg, png, gif, bmp, etc. Append one PDF file to the end of another one in VB.NET.
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C# PDF File Merge Library: Merge, append PDF files in C#.net, ASP.
Combine scanned images to PDF, such as tiff, jpg, png, gif, bmp, etc. Merge Microsoft Office Word, Excel and PowerPoint data to PDF form. Append one PDF file to
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• AdjusttheseEpsonScansettings(ifavailable)andtryscanningagain:
• SelectTextEnhancement
• SelectthecorrectImageTypesetting
• AdjusttheThresholdsetting
• CheckthemanualforyourOCRsoftwareforanyadditionaladjustments.
Parenttopic:SolvingScannedImageQualityProblems
Relatedconcepts
ConvertScannedDocumentstoEditableText(OCR)
ScanAreaisNotAdjustableinThumbnailPreview
IfyoucannotadjustthescanareawhileviewingaThumbnailpreviewinEpsonScan,trythesesolutions:
• Createascanareabydrawingamarqueeonyourpreviewimageandadjustingitasnecessary.
• SwitchtoNormalpreviewmode,ifavailable,andpreviewyourimageagain.
Parenttopic:SolvingScannedImageQualityProblems
ScannedImageEdgesareCropped
Iftheedgesofascannedimagearecropped,makesureyouroriginalisplacedcorrectlyforscanning.If
necessary,moveyouroriginalawayfromtheedgesofthescannerglassslightly.
Parenttopic:SolvingScannedImageQualityProblems
FilmorSlideScanningDoesNotWork
Ifyouhavetroublescanningfilmorslides,trythesesolutions:
• Removethedocumentmatfrominsidethescannercoverwheneveryouscanfilmorslides.
• Makesureyourfilmorslidesareplacedcorrectlyinthecorrectfilmholder,andtheholderis
positionedcorrectlyonthescannerglass.
• MakesuretheEpsonScanDocumentTypesetting(HomeMode)orFilmTypesetting(Professional
Mode)issetcorrectly.
Parenttopic:SolvingScannedImageQualityProblems
Relatedtopics
PlacingFilmorSlidesontheScanner
105
VB.NET PDF Page Extract Library: copy, paste, cut PDF pages in vb.
Dim outputFilePath As String = Program.RootPath + "\\" 1.pdf" newDoc.Save( outputFilePath). VB.NET: Extract All Images from PDF Document.
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C# PDF File Split Library: Split, seperate PDF into multiple files
Application. Best and professional adobe PDF file splitting SDK for Visual Studio .NET. outputOps); Divide PDF File into Two Using C#.
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NegativeFilmPreviewImageLooksIncorrect
Ifapreviewimagefromanegativefilmoriginallooksincorrect,trythesesolutions:
• MakesuretheEpsonScanDocumentTypesetting(HomeMode)orFilmTypesetting(Professional
Mode)issetcorrectly.
• InNormalpreviewmode,thefilmholderorfilmedgemaycausecolorstoappearincorrectly.Create
marqueesontheimageareaofeachimageandclickZoomtoprevieweachimagearea.
• TryusingThumbnailpreviewmodeinsteadofNormalpreviewmode.
Parenttopic:SolvingScannedImageQualityProblems
Relatedtopics
PlacingFilmorSlidesontheScanner
RingPatternAppearsinScannedFilmorSlides
Ifyouseeapatternofringsinscannedfilmorslideimages,theoriginalfilmorslideiscurled.Flipthefilm
orslideoverinitsholder,previewitagaininEpsonScan,clickthe
icon,andscanitagaintoflipthe
scannedimagebacktoitsoriginalorientation.
Parenttopic:SolvingScannedImageQualityProblems
Relatedtopics
PlacingFilmorSlidesontheScanner
WhentoUninstallYourScannerSoftware
Ifyouhaveaproblemthatrequiresyoutouninstallandre-installyoursoftware,followtheinstructionsfor
youroperatingsystem.
UninstallingScannerSoftware-Windows
UninstallingScannerSoftware-MacOSX
Parenttopic:SolvingProblems
UninstallingScannerSoftware-Windows
Youcanuninstallandthenre-installyourscannersoftwaretosolvecertainproblems.
1. Turnoffthescanner.
2. Disconnectanyinterfacecables.
106
3. Dothefollowingtouninstalleachofyourscanningsoftwareprograms,thenfollowanyon-screen
instructions:
• Windows8:NavigatetotheStartscreen,right-clickthescreen,andselectAllapps.Select
ControlPanel>Programs>ProgramsandFeatures.Selectthescannersoftwareprogramand
clickUninstall/Change.
• Windows7orWindowsVista:OpentheWindowsControlPanelutility.SelectProgramsand
Features.(InClassicview,selectProgramsandclickUninstallaprogram.)Selectthescanner
softwareprogramandclickUninstall/Change.
• WindowsXP:OpentheWindowsControlPanelutility.Double-clickAddorRemovePrograms.
SelectthescannersoftwareprogramandclickChange/Remove.
4. Restartyourcomputer,thenseetheStartHeresheettore-installyoursoftware.
Note:Ifyoufindthatre-installingyourscannersoftwaredoesnotsolveaproblem,contactEpson.
Parenttopic:WhentoUninstallYourScannerSoftware
UninstallingScannerSoftware-MacOSX
Inmostcases,youdonotneedtouninstallyourscannersoftwarebeforere-installingit.However,you
candownloadtheUninstallerutilityfromtheEpsonsupportwebsitetouninstallyourscannersoftwareas
describedhere.
Note:Ifyoufindthatre-installingyourscannersoftwaredoesnotsolveaproblem,contactEpson.
1. TodownloadtheUninstallerutility,visittheEpsondownloadsite(U.S.downloadsorCanadian
downloads).
2. FollowtheinstructionsonthescreentoinstalltheUninstallerutility.
3. QuitallapplicationscurrentlyrunningonyourMac.
4. Double-clicktheUninstallericon.
5. IntheEpsonUninstallerscreen,selectthecheckboxforeachsoftwareprogramyouwantto
uninstall.
6. ClickUninstall.
7. Followtheon-screeninstructionstouninstallthesoftware.
8. Toreinstallyourscannersoftware,seetheStartHeresheetforinstructions.
Parenttopic:WhentoUninstallYourScannerSoftware
107
WheretoGetHelp
IfyouneedtocontactEpsonfortechnicalsupportservices,usethefollowingsupportoptions.
InternetSupport
VisitEpson'ssupportwebsiteatepson.com/support(U.S.)orepson.ca/support(Canada)forsolutionsto
commonproblems.Youcandownloaddriversanddocumentation,getFAQsandtroubleshooting
advice,oremailEpsonwithyourquestions.
SpeaktoaSupportRepresentative
BeforeyoucallEpsonforsupport,pleasehavethefollowinginformationready:
• Productname
• Productserialnumber(locatedonalabelontheproduct)
• Proofofpurchase(suchasastorereceipt)anddateofpurchase
• Computerconfiguration
• Descriptionoftheproblem
Thencall:
• U.S.:(562)276-4382,6AMto8PM,PacificTime,MondaythroughFriday,and7AMto4PM,Pacific
Time,Saturday
• Canada:(905)709-3839,6AMto8PM,PacificTime,MondaythroughFriday,and7AMto4PM,
PacificTime,Saturday
Daysandhoursofsupportaresubjecttochangewithoutnotice.Tollorlongdistancechargesmay
apply.
Note:Forhelpusinganyothersoftwareonyoursystem,seethedocumentationforthatsoftwarefor
technicalsupport.
PurchaseSuppliesandAccessories
YoucanpurchasegenuineEpsonaccessoriesatepson.com(U.S.sales)orepson.ca(Canadiansales).
YoucanalsopurchaseaccessoriesfromanEpsonauthorizedreseller.Tofindthenearestone,call800-
GO-EPSON(800-463-7766).
Parenttopic:SolvingProblems
108
TechnicalSpecifications
Thesesectionslistthetechnicalspecificationsforyourscanner.
Note:Epsonoffersarecyclingprogramforendoflifeproducts.Pleasegotoepson.com/recyclefor
informationonhowtoreturnyourproductsforproperdisposal.
WindowsSystemRequirements
MacSystemRequirements
GeneralSpecifications
DimensionSpecifications
ElectricalSpecifications
EnvironmentalSpecifications
USBInterfaceSpecifications
SafetyandApprovalsSpecifications
WindowsSystemRequirements
Makesureyoursystemmeetstheserequirementsbeforeusingitwithyourscanner.
System
MicrosoftWindows8,Windows7,WindowsVista,WindowsXP,
WindowsXPx64
Interface
USB2.0Type-A
Display
Colormonitorwith1024×768resolutionorhigher,24-bit(FullColor)
colorsupport
Parenttopic:TechnicalSpecifications
MacSystemRequirements
Makesureyoursystemmeetstheserequirementsbeforeusingitwithyourscanner.
System
MacOSX10.8.x,10.7.x,10.6.x,10.5.8
(FastuserswitchingonMacOSXisnotsupported.)
Interface
MacintoshUSB
109
Display
Colormonitorwith1024×768resolutionorhigherandsupportfor
millionsofcolors
Note:EpsonScandoesnotsupporttheUNIXFileSystem(UFS)forMacOSX.InstallEpsonScanona
diskorinapartitionthatdoesnotuseUFS.
Parenttopic:TechnicalSpecifications
GeneralSpecifications
Scannertype
Flatbed,color
Photoelectricdevice
ColorCCDlinesensor
Effectivepixels
54400×74880pixelsat6400dpi
Scanningareamayberestrictedifresolutionsettingislarge.
Documentsize
Maximum:8.5×11.7inches(216×297mm);USletterorA4
Transparencies:
35mmfilmstrip:12framesatatime
35mmslides:upto4slidesatatime
6cmmediumformatfilm:upto22cm
Scanningresolution
6400dpi(mainscan)
9600dpiwithMicroStep(subscan)
Outputresolution
50to6400,9600,and12800dpi
(50to6400dpiin1dpiincrements)
Imagedata
16bitsperpixelpercolorinternal
16bitsperpixelpercolorexternal
Interface
OneHi-SpeedUSBport
Lightsource
WhiteLED,IRLED
Parenttopic:TechnicalSpecifications
110
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