Crashing on saving a page range

[shoppas]

I need to save a page range using the .SaveToFile(). All of the options work for this function EXCEPT the page range version. Doing anything with the function results in an "The file format is incorrect." error.

Example:

Spire.Pdf.PdfDocument document = new Spire.Pdf.PdfDocument(Filename);
document.SaveToFile("C:\\Temp\\foo.pdf",0,0, Spire.Pdf.FileFormat.PDF);


Please let me know if I'm doing anything wrong but it's a pretty straightforward call

I tried V 4.7 and am currently on 4.8.5.2040

[Lisa.Li]

Hello Shoppas,

Thanks for your letter.
Please kindly note that the function SaveToFile(string filename, int startIndex, int endIndex, FileFormat fileFormat) currently only supports saving PDF to SVG. If you want to save a page range to PDF, Please refer to the following tutorial on website for the details. If there is any doubt, just feel free to contact us.
Split PDF into Multiple PDFs using a Range of Pages in C#, VB.NET

Thanks and Regards
Lisa
E-iceblue support team

[shoppas]

I tried using that and now it generates a PDF file that is unreadable. The original file has 2 invoices in it and I need to separate them out individually.

Original PDF size 26K. Each resulting single page is 6K and un-readable.

I can email you the original PDF's so you can see if you can get them to separate correctly, but the cod I'm using is pretty straight forward.

Spire.Pdf.PdfDocument document = new Spire.Pdf.PdfDocument(Filename);
Spire.Pdf.PdfDocument documentToSave = new Spire.Pdf.PdfDocument();
Spire.Pdf.PdfPageBase newPage = null;

Spire.Pdf.Widget.PdfPageCollection PDFPages = document.Pages;

foreach (Spire.Pdf.PdfPageBase page in PDFPages)
{
//Get Invoice Number from Rectange Area (i.e. ie. page 1 of N)
.......

newPage = documentToSave.Pages.Add(page.Size, new Spire.Pdf.Graphics.PdfMargins(0));
page.CreateTemplate().Draw(newPage, new PointF(0, 0));

//If not the same invoice.... save it
......
documentToSave.SaveToFile($"{InvoiceNumber}.pdf");

}

I have attached the resulting PDF's, but don't want to publically post the original multi-page PDF.

[Lisa.Li]

Hello Shoppas,

To help us locate your issue quickly, please send your original Pdf, resultant Pdf as well as your full code(including "......" part) to us via email([email protected]). Thanks in advance.

Sincerely,
Lisa
E-iceblue support team

[shoppas]

I emailed the file(s). Let me know if you receive them. I built you a project that is functional and reproduces the error noted.

[Lisa.Li]

Dear Shoppas,

Sorry we didn’t receive your email, could you zip it and upload again? Thanks in advance.

Sincerely,
Lisa
E-iceblue support team