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pdf2img li b Reference App en dix      A.3
pdf2img_convert_page 
(ImageConversion iC, unsigned int pageNum, const char *outputPath)
Return Value: int
Technical Notes
1 While a NULL argument will suppress writing an output file, note that a work file will be temporarily 
created during the conversion process.
2 If the conversion is performed "in memory," then the ImageConversion will hold the memory for 
the conversion until the next call to pdf2img_convert_page, or until 
pdf2img_release_pagemem is called.
Description
This call converts the specified page of the PDF file, writing into 
the file specified by outputPath. Alternatively, you can sup-
press writing an output file by passing a NULL in place of an 
output file argument, and then use a 
pdf2img_get_pagemem call to load the converted graphic 
into memory.
Parameters
• ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
• unsigned int pageNum: sequence number of input file 
page to be converted, counting from 1
• const char *outputPath: name of file to receive 
converted output, or NULL
Return Value
int
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_get_pagemem,
pdf2img_get_pagememsize,
pdf2img_release_pagemem
Availability
All platforms
How to delete text in pdf preview - delete, remove text from PDF file in C#.net, ASP.NET, MVC, Ajax, WinForms, WPF
Allow C# developers to use mature APIs to delete and remove text content from PDF document
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How to delete text in pdf preview - VB.NET PDF delete text library: delete, remove text from PDF file in vb.net, ASP.NET, MVC, Ajax, WinForms, WPF
VB.NET Programming Guide to Delete Text from PDF File
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A.4
PDF2IMG User Guide
pdf2img_destroy_conversion 
(ImageConversion iC)
Return Value: int
Description
This call frees the resources used by this image conversion.  
After this call has been made, the ImageConversion is no 
longer valid, and must not be used. (Required)
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
int
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_new_conversion,
pdf2img_new_memconversion
Availability
All platforms
How to C#: Preview Document Content Using XDoc.Word
How to C#: Preview Document Content Using XDoc.Word. Get Preview From File. You may get document preview image from an existing Word file in C#.net.
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How to C#: Preview Document Content Using XDoc.PowerPoint
How to C#: Preview Document Content Using XDoc.PowerPoint. Get Preview From File. You may get document preview image from an existing PowerPoint file in C#.net.
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pdf2img li b Reference App en dix      A.5
pdf2img_end_multipage 
(ImageConversion iC)
Return Value: int
Description
This call ends a multipage image span.
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
int
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_set_multipage,
pdf2img_start_multipage
Availability
All platforms
VB.NET PDF File Compress Library: Compress reduce PDF size in vb.
a preview component enables compressing and decompressing in preview in ASP images size reducing can help to reduce PDF file size Delete unimportant contents:
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C# WinForms Viewer: Load, View, Convert, Annotate and Edit PDF
Add text to PDF document in preview. • Add text box to PDF file in preview. • Draw PDF markups. Search PDF text in preview. • View PDF outlines.
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A.6
PDF2IMG User Guide
pdf2img_error_string 
(ImageConversion iC)
Return Value: const char *
Description
This call returns an English-language string representing the last 
error encountered during PDF processing.  Do not release this 
string.
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
const char *
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_get_extended_error,
pdf2img_last_error
Availability
All platforms
C# WinForms Viewer: Load, View, Convert, Annotate and Edit
PowerPoint Conversion. • Convert Microsoft Office PowerPoint to PDF (.pdf). Delete annotations from PowerPoint. Select PowerPoint text contents for edit.
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C# PDF insert text Library: insert text into PDF content in C#.net
Supports adding text to PDF in preview without adobe reader installed in ASP.NET. Powerful .NET PDF edit control allows modify existing scanned PDF text.
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pdf2img li b Reference App en dix      A.7
pdf2img_get_extended_error 
(ImageConversion iC)
Return Value: const char *
Description
This call returns a text string indicating the last error that 
occurred in a sub-component of the application. Typically this is 
an error reported by the Adobe PDF Library.
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
const char *
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_error_string,
pdf2img_last_error
Availability
All platforms
How to C#: Preview Document Content Using XDoc.excel
How to C#: Preview Document Content Using XDoc.Excel. Get Preview From File. You may get document preview image from an existing Excel file in C#.net.
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C# PDF replace text Library: replace text in PDF content in C#.net
Description: Delete specified string text that match the search option from specified PDF page. Parameters: Name, Description, Valid Value.
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A.8
PDF2IMG User Guide
pdf2img_get_num_pages 
(ImageConversion iC)
Return Value: int
Description
This call returns the number of pages in the PDF file to be used 
for the image conversion.
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
int: Number of pages to be converted. Returns -1 in case of 
error.
Exceptions
Header
pdf2imglib.h
Related Methods
Availability
All platforms
pdf2img li b Reference App en dix      A.9
pdf2img_get_pagemem 
(ImageConversion iC, void *memBuf, unsigned int bufCapacity)
Return Value: int
Description
After pdf2img_convert_page has converted a graphic 
into memory (by specifying NULL in place of its outputPath 
argument), this pdf2img_get_pagemem call will copy those 
results into memBuf. Note that memBuf is owned by the caller, 
and must have been allocated to hold at least bufCapacity 
bytes. (The pdf2img_get_pagememsize call can return 
the necessary size for this allocation.)
Parameters
• ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
• void *memBuf: buffer allocated to receive the image from 
memory
• unsigned int bufCapacity: size of the allocated buffer
Return Value
int
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_convert_page,
pdf2img_get_pagememsize,
pdf2img_release_pagemem
Availability
All platforms
A.10
PDF2IMG User Guide
pdf2img_get_pagememsize 
(ImageConversion iC)
Return Value: int
Description
After pdf2img_convert_page has converted a graphic 
into memory (by specifying NULL in place of its outputPath 
argument), this call will return the number of bytes that will be 
required to hold the memory output. Results of this call will be 
needed to allocate the correct amount of memory buffer for a 
subsequent call to pdf2img_get_pagemem.
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
int: number of bytes required to hold the memory representing 
the graphic created by pdf2img_convert_page
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_convert_page,
pdf2img_get_pagemem,
pdf2img_release_pagemem
Availability
All platforms
pd f2imgl ib R eferenc e  Ap pendi x       A. 11
pdf2img_get_profiledata 
(ImageConversion iC)
Return Value: char *
Description
If an input image in memory contains a color profile, this call will 
return a pointer to a string containing the ICC Profile data (or 
NULL if a profile is not present).
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
char *: pointer to a string containing the ICC Profile data
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_get_profilesize
Availability
All platforms
A.12
PDF2IMG User Guide
pdf2img_get_profilesize 
(ImageConversion iC)
Return Value: size_t
Description
If an input image in memory contains a color profile, this call will 
return its size (or 0 if a profile is not present).
Parameters
ImageConversion iC: the data structure containing the 
specifications for the active, current conversion
Return Value
size_t: the size of the ICC Profile data
Exceptions
Header
pdf2imglib.h
Related Methods
pdf2img_get_profiledata
Availability
All platforms
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