Doubt FrreeNuget - FreeSpier.pdf

[iramirez]

Hi.

I am using the Nuget FrreSpier.pdf and FreeSpier.doc.
I need to sign an already generated pdf with a digital certificate.

Dim doc As Spire.Pdf.PdfDocument = New Spire.Pdf.PdfDocument()
doc.LoadFromFile("202107011313154.pdf")
Dim cert1 As Spire.Pdf.Security.PdfCertificate = New Spire.Pdf.Security.PdfCertificate()
Dim Signature As Spire.Pdf.Security.PdfSignature = New Spire.Pdf.Security.PdfSignature(doc, doc.Pages(0), cert1, "Requestd1")

Probably that the pdf files have more than 10 pages.

What limitations. What differences does the free version have with the standard edition?

[Sofia.Yang]

Hello,

Thanks for your inquiry.
For Spire.Doc, our free version is limited to 500 paragraphs and 25 tables. This limitation is enforced during reading or writing files. When converting word documents to PDF and XPS files, you can only get the first 3 page of PDF file.

For Spire.PDF, compared with the commercial version, free version is limited to 10 pages of PDF. This limitation is enforced during loading and creating files. When converting PDF to Image, only the first 3 pages of PDF files will be converted to Image format successfully.

If your requirements exceed the limitation, we recommend you to use our commercial version. And we could provide you with a 1 month free temporary license to evaluate our product without any limitations or watermarks. If you need it, please contact our sales team ([email protected]).

Besides, kindly note that our Spire.Doc and Spire.PDF are two independent products, they cannot be used together in a same project. To avoid the incompatibility, please use our Spire.Office(the latest commercial version is Spire.Office Platinum(Hotfix) V6.7.0).

Sincerely,
Sofia
E-iceblue support team