pdfConvertToTextFile
Convert pages to text and write to a file.
int pdfConvertToTextFile(PDFHandle pdf, int firstPage, int lastPage, char *textFileName)
This function converts the specified range of pages
(
firstPage through lastPage) to text, and
writes the text to a file on disk (textFileName).
If lastPage is -1, this function will convert up to the
last page in the PDF file. (See also pdfGetNumPages.)
pdfConvertToTextFile returns 1 if successful, or 0 if the
file could not be created or if text extraction is prohibited by this
PDF file.
This function is identical to pdfConvertToTextString except that
it extracts to a file on disk rather than to a string in memory.
See the "Setting parameters" section in the function list for settings that affect text extraction.
C:
if (!pdfConvertToTextFile(pdf, 1, n, "file.txt")) {
/* handle the error */
}