在使用你们产品进行pdf转tif的时候发现报错,请问下这个是什么引起的
PdfDocument pdf = new PdfDocument();
pdf.loadFromFile(pdfPath);
pdf.saveToTiff(pdfPath.split("\\.")[0] + ".tiff", 0, 0, 400, 400);
Exception in thread "main" class com.spire.pdf.packages.sprezB: Parameter is invalid
com.spire.pdf.packages.sprVkc.spr (hgg:579)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprfdA.spr (Unknown Source)
com.spire.pdf.packages.sprgqb.spr (Unknown Source)
com.spire.pdf.packages.sprgqb.spr (Unknown Source)
com.spire.pdf.PdfDocumentBase.spr (Unknown Source)
com.spire.pdf.PdfDocument.spr (Unknown Source)
com.spire.pdf.PdfDocument.saveToTiff(Unknown Source)
com.cc.PDFtTiff.PDFtTiff.convertToTiff(PDFtTiff.java:31)
com.cc.PDFtTiff.PDFtTiff.main(PDFtTiff.java:20)
at com.spire.pdf.packages.sprVkc.spr (hgg:579)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprfdA.spr (Unknown Source)
at com.spire.pdf.packages.sprgqb.spr (Unknown Source)
at com.spire.pdf.packages.sprgqb.spr (Unknown Source)
at com.spire.pdf.PdfDocumentBase.spr (Unknown Source)
at com.spire.pdf.PdfDocument.spr (Unknown Source)
at com.spire.pdf.PdfDocument.saveToTiff(Unknown Source)
at com.cc.PDFtTiff.PDFtTiff.convertToTiff(PDFtTiff.java:31)
at com.cc.PDFtTiff.PDFtTiff.main(PDFtTiff.java:20)