Convert Multi-Page TIFF to Single Page

ViciousXUSMC · April 29, 2016

So a little project I am working on.

I sort of have this working via Irfanview using cmd scripting, but curious if it can be done in AutoIT maybe with GDI+ or any other native tool.

I have an ancient microfilm scanner, and currently the only way it will scan is to take a full screen scan of 11x14 and make it a 2 page 8.5x11 Tiff Image.

So this is cutting the image in half down the middle.

What I need to do is have the 2nd page append to the first page on the right side, and then save the image as a single flat new image (Do not care about format very much)

Any of the GDI wizards think this can be done?

Here is my starting point, I can open the image, convert the format to .jpg and flatten it (lose the 2nd page of the TIF)

I have not quite figured out how to grab that 2nd page or do the append (panorama

#Include <GDIPlus.au3>

Local $hImage, $sCLSID
_GDIPlus_Startup()

$hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Test3.tif")
$sCLSID = _GDIPlus_EncodersGetCLSID("TIF")
$sCLSID2 = _GDIPlus_EncodersGetCLSID("JPG")

_GDIPlus_ImageSaveToFileEx($hImage, @ScriptDir & "\GDIPlus_Image2.jpg", $sCLSID2)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()

Edit: got a lead on the multipage stuff:

And my code has grown into something where I am trying to draw an image ontop of the first image but it looks like it wont expand the canvas, but ultimately I was thinking just draw the 2nd page next to the 1st page once I figure out how to capture the 2nd page.

#Include <GDIPlus.au3>

Local $hImage, $sCLSID
_GDIPlus_Startup()

$hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Test3.tif")
$sCLSID = _GDIPlus_EncodersGetCLSID("TIF")
$sCLSID2 = _GDIPlus_EncodersGetCLSID("JPG")

$iWidth = _GDIPlus_ImageGetWidth($hImage)
$iHeight = _GDIPlus_ImageGetHeight($hImage)

 ; Draw one image in another
$hGraphics = _GDIPlus_ImageGetGraphicsContext($hImage)
_GDIPlus_GraphicsDrawImage($hGraphics, $hImage, $iWidth, $iHeight)

_GDIPlus_ImageSaveToFileEx($hImage, @ScriptDir & "\GDIPlus_Image2.jpg", $sCLSID2)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()

Edited April 29, 2016 by ViciousXUSMC

UEZ · April 29, 2016

Do you have an example TIFF image which we can work on?

Thx.

ViciousXUSMC · April 29, 2016

Yeah attached to this post.

Test3.tif

UEZ · April 29, 2016

You can do something like this here:

#include <GDIPlus.au3>

_GDIPlus_Startup()

Global $aBitmaps = _GDIPlus_ImageLoadFromMultiPageImage(@ScriptDir & "\Test3.tif")
Global $i, $iW = 0, $iH = 0, $iX = 0
For $i = 1 to $aBitmaps[0]
    $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
    $iH = _GDIPlus_ImageGetHeight($aBitmaps[$i]) > $iH ? _GDIPlus_ImageGetHeight($aBitmaps[$i]) : $iH
Next
$hBitmap = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
$hGfx = _GDIPlus_ImageGetGraphicsContext($hBitmap)

$iW = 0
For $i = $aBitmaps[0] To 1 Step - 1
    _GDIPlus_GraphicsDrawImageRect($hGfx, $aBitmaps[$i], $iW, 0, _GDIPlus_ImageGetWidth($aBitmaps[$i]), _GDIPlus_ImageGetHeight($aBitmaps[$i]))
    $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
Next

$sSave = @ScriptDir & "\Test3.gif"
_GDIPlus_ImageRotateFlip($hBitmap, 6)
_GDIPlus_ImageSaveToFile($hBitmap, $sSave)

_GDIPlus_GraphicsDispose($hGfx)
_GDIPlus_BitmapDispose($hBitmap)
For $i = 1 to $aBitmaps[0]
    _GDIPlus_BitmapDispose($aBitmaps[$i])
Next
_GDIPlus_Shutdown()

ShellExecute($sSave)

;code by Eukalyptus
Func _GDIPlus_ImageLoadFromMultiPageImage($sPath)
    Local $hImage = _GDIPlus_ImageLoadFromFile($sPath)
    If @error Then Return SetError(1, 1, False)
    Local $iCount = _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    If Not $iCount Then Return SetError(1, 2, False)
    Local $aList = _GDIPlus_ImageGetFrameDimensionsList($hImage)
    If @error Or Not IsArray($aList) Then Return SetError(1, 3, False)

    Local $iPixelFormat, $iImageW, $iImageH
    Local $aReturn[1], $iCnt = 0
    For $i = 1 To $aList[0]
        $iCount = _GDIPlus_ImageGetFrameCount($hImage, $aList[$i])
        For $j = 1 To $iCount
            _GDIPlus_ImageSelectActiveFrame($hImage, $aList[$i], $j)
            $iCnt += 1
            ReDim $aReturn[$iCnt + 1]
            $iPixelFormat = _GDIPlus_ImageGetPixelFormat($hImage)
            $iImageW = _GDIPlus_ImageGetWidth($hImage)
            $iImageH = _GDIPlus_ImageGetHeight($hImage)
            $aReturn[$iCnt] = _GDIPlus_BitmapCloneArea($hImage, 0, 0, $iImageW, $iImageH, $iPixelFormat)
        Next
    Next
    _GDIPlus_ImageDispose($hImage)
    $aReturn[0] = $iCnt
    Return $aReturn
EndFunc   ;==>_GDIPlus_ImageLoadFromMultiPageImage

Func _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipImageGetFrameDimensionsCount", "handle", $hImage, "uint*", 0)
    If @error Then Return SetError(@error, @extended, -1)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    Return $aResult[2]
EndFunc   ;==>_GDIPlus_ImageGetFrameDimensionsCount

Func _GDIPlus_ImageGetFrameDimensionsList($hImage)
    Local $iI, $iCount, $tBuffer, $pBuffer, $aPropertyIDs[1], $aResult
    $iCount = _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    If @error Then Return SetError(@error, @extended, -1)
    $tBuffer = DllStructCreate("byte[" & $iCount * 16 & "]")
    $pBuffer = DllStructGetPtr($tBuffer)
    $aResult = DllCall($__g_hGDIPDll, "int", "GdipImageGetFrameDimensionsList", "handle", $hImage, "ptr", $pBuffer, "int", $iCount)
    If @error Then Return SetError(@error, @extended, -1)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    ReDim $aPropertyIDs[$iCount + 1]
    $aPropertyIDs[0] = $iCount
    For $iI = 1 To $iCount
        $aPropertyIDs[$iI] = _WinAPI_StringFromGUID($pBuffer)
        $pBuffer += 16
    Next
    Return $aPropertyIDs
EndFunc   ;==>_GDIPlus_ImageGetFrameDimensionsList

ViciousXUSMC · April 29, 2016

I needed to add in the getframecount function.

After I am getting an error on the DLL Call

$aResult = DllCall($ghGDIPDll, "int", "GdipImageGetFrameCount", "handle", $hImage, "ptr", $pGUID, "uint*", 0)

Missing a declaration for $ghGDIPDII

Edit: Searched and found it should be $__g_hGDIPDll

Got my working code up to this for now.

I may make it even more automated and actually automate the scan in the future.

#include <GDIPlus.au3>
#include <Array.au3>
#include <File.au3>
#pragma compile(Icon, E:\Users\it022565\Desktop\Desktop\System Tools\iconsext\icons\imageres_34.ico)

$sScans = "C:\Scans"
$sProcessed = "C:\Scans\Processed\"
$sMerged = "C:\Scans\Merged\"
Local $sDrive
Local $sDir
Local $sFileName
Local $sExtension

DirCreate($sProcessed)
DirCreate($sMerged)

$aFiles = _FileListToArray($sScans, "*.tif", $FLTA_FILES, True)


_GDIPlus_Startup()


For $i2 = 1 to $aFiles[0]
$aPathSplit = _PathSplit($aFiles[$i2], $sDrive, $sDir, $sFileName, $sExtension)
Global $aBitmaps = _GDIPlus_ImageLoadFromMultiPageImage($aFiles[$i2])
Global $i, $iW = 0, $iH = 0, $iX = 0
For $i = 1 to $aBitmaps[0]
    $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
    $iH = _GDIPlus_ImageGetHeight($aBitmaps[$i]) > $iH ? _GDIPlus_ImageGetHeight($aBitmaps[$i]) : $iH
Next
$hBitmap = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
$hGfx = _GDIPlus_ImageGetGraphicsContext($hBitmap)

$iW = 0
For $i = $aBitmaps[0] To 1 Step - 1
    _GDIPlus_GraphicsDrawImageRect($hGfx, $aBitmaps[$i], $iW, 0, _GDIPlus_ImageGetWidth($aBitmaps[$i]), _GDIPlus_ImageGetHeight($aBitmaps[$i]))
    $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
Next

$sSave = $sMerged & $sFileName & ".gif"
_GDIPlus_ImageRotateFlip($hBitmap, 6)
_GDIPlus_ImageSaveToFile($hBitmap, $sSave)

_GDIPlus_GraphicsDispose($hGfx)
_GDIPlus_BitmapDispose($hBitmap)
For $i = 1 to $aBitmaps[0]
    _GDIPlus_BitmapDispose($aBitmaps[$i])
Next
FileMove($aFiles[$i2], $sProcessed)
Next




_GDIPlus_Shutdown()

;ShellExecute($sSave)


Func _GDIPlus_ImageLoadFromMultiPageImage($sPath)
    Local $hImage = _GDIPlus_ImageLoadFromFile($sPath)
    If @error Then Return SetError(1, 1, False)
    Local $iCount = _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    If Not $iCount Then Return SetError(1, 2, False)
    Local $aList = _GDIPlus_ImageGetFrameDimensionsList($hImage)
    If @error Or Not IsArray($aList) Then Return SetError(1, 3, False)

    Local $iPixelFormat, $iImageW, $iImageH
    Local $aReturn[1], $iCnt = 0
    For $i = 1 To $aList[0]
        $iCount = _GDIPlus_ImageGetFrameCount($hImage, $aList[$i])
        For $j = 1 To $iCount
            _GDIPlus_ImageSelectActiveFrame($hImage, $aList[$i], $j)
            $iCnt += 1
            ReDim $aReturn[$iCnt + 1]
            $iPixelFormat = _GDIPlus_ImageGetPixelFormat($hImage)
            $iImageW = _GDIPlus_ImageGetWidth($hImage)
            $iImageH = _GDIPlus_ImageGetHeight($hImage)
            $aReturn[$iCnt] = _GDIPlus_BitmapCloneArea($hImage, 0, 0, $iImageW, $iImageH, $iPixelFormat)
        Next
    Next
    _GDIPlus_ImageDispose($hImage)
    $aReturn[0] = $iCnt
    Return $aReturn
EndFunc   ;==>_GDIPlus_ImageLoadFromMultiPageImage

Func _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipImageGetFrameDimensionsCount", "handle", $hImage, "uint*", 0)
    If @error Then Return SetError(@error, @extended, -1)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    Return $aResult[2]
EndFunc   ;==>_GDIPlus_ImageGetFrameDimensionsCount

Func _GDIPlus_ImageGetFrameDimensionsList($hImage)
    Local $iI, $iCount, $tBuffer, $pBuffer, $aPropertyIDs[1], $aResult
    $iCount = _GDIPlus_ImageGetFrameDimensionsCount($hImage)
    If @error Then Return SetError(@error, @extended, -1)
    $tBuffer = DllStructCreate("byte[" & $iCount * 16 & "]")
    $pBuffer = DllStructGetPtr($tBuffer)
    $aResult = DllCall($__g_hGDIPDll, "int", "GdipImageGetFrameDimensionsList", "handle", $hImage, "ptr", $pBuffer, "int", $iCount)
    If @error Then Return SetError(@error, @extended, -1)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    ReDim $aPropertyIDs[$iCount + 1]
    $aPropertyIDs[0] = $iCount
    For $iI = 1 To $iCount
        $aPropertyIDs[$iI] = _WinAPI_StringFromGUID($pBuffer)
        $pBuffer += 16
    Next
    Return $aPropertyIDs
EndFunc   ;==>_GDIPlus_ImageGetFrameDimensionsList

Func _GDIPlus_ImageSaveAddImage($hImage, $hImageNew, $pParams)
    Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipSaveAddImage", "handle", $hImage, "handle", $hImageNew, "ptr", $pParams)
    If @error Then Return SetError(@error, @extended, False)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    Return $aResult[0] = 0
EndFunc   ;==>_GDIPlus_ImageSaveAddImage

Func _GDIPlus_ImageGetFrameCount($hImage, $sDimensionID)
    Local $tGUID, $pGUID, $aResult
    $tGUID = _WinAPI_GUIDFromString($sDimensionID)
    $pGUID = DllStructGetPtr($tGUID)
    $aResult = DllCall($__g_hGDIPDll, "int", "GdipImageGetFrameCount", "handle", $hImage, "ptr", $pGUID, "uint*", 0)
    If @error Then Return SetError(@error, @extended, -1)
    If $aResult[0] Then Return SetError(10, $aResult[0], -1)
    Return $aResult[3]
EndFunc   ;==>_GDIPlus_ImageGetFrameCount

Func _GDIPlus_ImageSelectActiveFrame($hImage, $sDimensionID, $iFrameIndex)
    Local $pGUID, $tGUID, $aResult
    $tGUID = DllStructCreate($tagGUID)
    $pGUID = DllStructGetPtr($tGUID)
    _WinAPI_GUIDFromStringEx($sDimensionID, $pGUID)
    $aResult = DllCall($__g_hGDIPDll, "uint", "GdipImageSelectActiveFrame", "handle", $hImage, "ptr", $pGUID, "uint", $iFrameIndex)
    If @error Then Return SetError(@error, @extended, False)
    If $aResult[0] Then Return SetError(10, $aResult[0], False)
    Return True
EndFunc   ;==>_GDIPlus_ImageSelectActiveFrame

Edited April 29, 2016 by ViciousXUSMC

TouchOdeath · August 9, 2016

I'm posting something slightly deviated from the original intent of the OP just FYI. Thank you UEZ and ViciousXUSMC for the wonderful code. I cleaned up some of your main function, but took out the multipage aspect. I added the ability to convert tif to a different file format other than gif:

TIFconvert("C:\somefile.tif")

;Tested filetypes:
;Working filetypes: png, gif, bmp, jpg/jpeg
;Not working filetypes: webp
Func TIFconvert($sFile, $sFileType = "jpg")
    _GDIPlus_Startup()
    Local $sDrive, $sDir, $sFileName, $sExtension
    Local $aPathSplit = _PathSplit($sFile, $sDrive, $sDir, $sFileName, $sExtension)
    Local $aBitmaps = _GDIPlus_ImageLoadFromMultiPageImage($sFile)
    Local $iW = 0, $iH = 0
    For $i = 1 To $aBitmaps[0]
        $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
        $iH = _GDIPlus_ImageGetHeight($aBitmaps[$i]) > $iH ? _GDIPlus_ImageGetHeight($aBitmaps[$i]) : $iH
    Next
    Local $hBitmap = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
    Local $hGfx = _GDIPlus_ImageGetGraphicsContext($hBitmap)

    $iW = 0
    For $i = $aBitmaps[0] To 1 Step -1
        _GDIPlus_GraphicsDrawImageRect($hGfx, $aBitmaps[$i], $iW, 0, _GDIPlus_ImageGetWidth($aBitmaps[$i]), _GDIPlus_ImageGetHeight($aBitmaps[$i]))
        $iW += _GDIPlus_ImageGetWidth($aBitmaps[$i])
    Next

    Local $sSave = $sDir & "\" & $sFileName & "." & $sFileType
    ;_GDIPlus_ImageRotateFlip($hBitmap, 6)
    _GDIPlus_ImageSaveToFile($hBitmap, $sSave)

    _GDIPlus_GraphicsDispose($hGfx)
    _GDIPlus_BitmapDispose($hBitmap)
    For $i = 1 To $aBitmaps[0]
        _GDIPlus_BitmapDispose($aBitmaps[$i])
    Next
    _GDIPlus_Shutdown()
EndFunc   ;==>TIFconvert

Of course if your doing other GDI+ things outside this function, you won't want to embed startup and shutdown inside the function.

Edited August 9, 2016 by TouchOdeath

haijie1223 · March 6, 2019

@UEZ How can I convert multiple jpg files into multi-page tiff files?

haijie1223 · March 6, 2019

@TouchOdeathHow can I convert multiple jpg files into multi-page tiff files?

UEZ · March 6, 2019

On 3/6/2019 at 3:23 PM, haijie1223 said:

@UEZ How can I convert multiple jpg files into multi-page tiff files?

Expand

Or look in the help file for the example of:

_GDIPlus_ImageSaveAddImage

Edited March 6, 2019 by UEZ

haijie1223 · March 6, 2019

@UEZGood job！Thanks！

haijie1223 · March 8, 2019

@UEZHello，UEZ。

The multi-page tif file which created by this code size larger than the all single-page tiff files total size.other software write with the libtiff library, the size is not increased。how to solve this problem？

rudi · March 8, 2019

Hello,

For spliting multipage TIF to single page TIF I use IrfanView. For that customer it's only FaxG4 encoded TIF files, CAD drawings, but maybe this is an aditional approach worth taking a look at, for you?

$MultiTifDir=@ScriptDir
$ExtractDir = $MultiTifDir & "\Multi-TIF-Extracted"
DirCreate($ExtractDir)
$I_VIEW="C:\Program Files (x86)\IrfanView\i_view32.exe"
if not FileExists($I_VIEW) Then
    MsgBox(48,"Fehler - IRFAN fehlt (32bit)","Dieses Script benötigt die Installation von Irfan View (32-bit Version auf 64-bit Windows)" & @CRLF & _
    "Nicht gefunden wurde:" & @CRLF & _
    $I_VIEW)
    Exit
EndIf



$s = FileFindFirstFile($MultiTifDir & "\*.tif")
if $s = -1 Then
    MsgBox(0,"Fehler","Keine TIF Dateien gefunden im Verzeichnis" & @CRLF & _
    $MultiTifDir)
    FileClose($s)
    Exit
EndIf

$Count=0
while 1
    $next=FileFindNextFile($s)
    if @error Then
        FileClose($s)
        MsgBox(0,"fertig","Es wurden " & $Count & " TIF Dateien verarbeitet." & @CRLF & _
        "Die Resultate liegen im Unterordner ""Extracted"".")
        ShellExecute($ExtractDir)
        Exit
    ElseIf @extended Then
        ContinueLoop
    Else
        SplitTIF($MultiTifDir & "\" & $next)
        $Count+=1
    EndIf
WEnd


Func SplitTIF($_FullPathFileName)
    $params = $_FullPathFileName & " /extract=(" & $ExtractDir & ",tif) /cmdexit"
    ShellExecute($I_VIEW, $params)
EndFunc   ;==>SplitTIF

Regards, Rudi.

UEZ · March 8, 2019

On 3/8/2019 at 10:32 AM, haijie1223 said:

@UEZHello，UEZ。

The multi-page tif file which created by this code size larger than the all single-page tiff files total size.other software write with the libtiff library, the size is not increased。how to solve this problem？

Expand

Try something like this here:

#include <GDIPlus.au3>

CreateMultiFrameTIFF(@MyDocumentsDir & "\GDIPlus_MultiFrame.tif")
ShellExecute(@MyDocumentsDir & "\GDIPlus_MultiFrame.tif")

Func CreateMultiFrameTIFF($sFile, $iPages = 4)
    _GDIPlus_Startup()

    Local $sImgCLSID = _GDIPlus_EncodersGetCLSID("tif") ;create CLSID for a TIFF image file type

    ;Create main image
    Local $hImage = _GDIPlus_BitmapCreateFromScan0(400, 300)
    Local $hContext = _GDIPlus_ImageGetGraphicsContext($hImage)
    _GDIPlus_GraphicsClear($hContext, 0xFFFFFFFF)
    _GDIPlus_GraphicsDrawRect($hContext, 5, 5, 390, 290)
    _GDIPlus_GraphicsDrawString($hContext, "MultiFrame TIFF" & @CRLF & "Frame " & 1 & "/" & $iPages, 20, 20, "ARIAL", 32)
    _GDIPlus_GraphicsDispose($hContext)

    ;Save main image (first frame) and add MultiFrame-Param
    Local $tParamData = DllStructCreate("int data;int colordepth;int compression")
    $tParamData.data = $GDIP_EVTMULTIFRAME
    $tParamData.colordepth = 4
    $tParamData.compression = $GDIP_EVTCOMPRESSIONLZW ;$GDIP_EVTCOMPRESSIONCCITT3; $GDIP_EVTCOMPRESSIONCCITT4 ;$GDIP_EVTCOMPRESSIONRLE; $GDIP_EVTCOMPRESSIONRLE ;$GDIP_EVTCOMPRESSIONNONE

    Local $tParams = _GDIPlus_ParamInit(3)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGSAVEFLAG, 1, $GDIP_EPTLONG, DllStructGetPtr($tParamData, "Data"))
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGCOLORDEPTH, 1, $GDIP_EPTLONG, DllStructGetPtr($tParamData, "ColorDepth"))
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGCOMPRESSION, 1, $GDIP_EPTLONG, DllStructGetPtr($tParamData, "Compression"))

    _GDIPlus_ImageSaveToFileEx($hImage, $sFile, $sImgCLSID, $tParams)

    ;Create & save next frames
    Local $hImage_SubPage
    For $i = 2 To $iPages
        $hImage_SubPage = _GDIPlus_BitmapCreateFromScan0(400, 300)
        $hContext = _GDIPlus_ImageGetGraphicsContext($hImage_SubPage)
        _GDIPlus_GraphicsClear($hContext, 0xFFFFFFFF)
        _GDIPlus_GraphicsDrawRect($hContext, 5, 5, 390, 290)
        _GDIPlus_GraphicsDrawString($hContext, "MultiFrame TIFF" & @CRLF & "Frame " & $i & "/" & $iPages, 20, 20, "ARIAL", 32)
        _GDIPlus_GraphicsDispose($hContext)

        ;add frame to file
        _GDIPlus_ImageSaveAddImage($hImage, $hImage_SubPage, $tParams)

        ;dispose curent frame bitmap
        _GDIPlus_BitmapDispose($hImage_SubPage)
    Next

    ;Close the multiframe file.
    $tParamData.data = $GDIP_EVTFLUSH
    $tParams = _GDIPlus_ParamInit(1)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGSAVEFLAG, 1, $GDIP_EPTLONG, DllStructGetPtr($tParamData, "Data"))
    _GDIPlus_ImageSaveAdd($hImage, $tParams)

    _GDIPlus_ImageDispose($hImage)
    _GDIPlus_Shutdown()
EndFunc   ;==>CreateMultiFrameTIFF

I modified the example from the help file a little bit. Try different compression settings and bit depth (2, 4, 8, 16, 24, 32).

Edited March 8, 2019 by UEZ

haijie1223 · March 10, 2019

@UEZThanks，I found the compression is an important reason

emendelson · April 21, 2023

I've been trying to adapt this code to convert a single-page TIFF to PNG, without success. I'll keep trying, but I wonder if anyone has adapted this code for single-page files?

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Convert Multi-Page TIFF to Single Page

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