Is it possible to extract form Fields

[ipandya]

Hi All,

Can we read form fields from PDF using Spire.PDF. If it is possible, can someone provide me with a sample with C#?

Thanks in advanced. Much appreciated

[Betsy]

Dear ipandya,

Thanks for your inquiry.
Spire.PDF supports to extract form field. Here is sample code for your reference:

Code: Select all

            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile(FilePath + "FormFieldData.pdf");
            //Get form
            PdfFormWidget formWidget = doc.Form as PdfFormWidget;
            for (int i = 0; i < formWidget.FieldsWidget.List.Count; i++)
            {
                PdfField field = formWidget.FieldsWidget.List[i] as PdfField;
                if (field is PdfTextBoxFieldWidget)
                {
                    PdfTextBoxFieldWidget textBoxField = field as PdfTextBoxFieldWidget;
                    //Get the text
                    string s =textBoxField.Text;
                   ...
                }
            }

Also, there is a guide to fill Form Fields for your reference.
http://www.e-iceblue.com/Tutorials/Spir ... ith-C.html
If there is any question, welcome to get it back to us.

Sincerely,
Betsy
E-iceblue support team

[ipandya]

Hi Betsy,

Thank you for your response. We are evaluating your SDK and would like to know that, if it is possible to extract text from a given area (rectangle). If yes, could you just provide me with a sample or the name of the section which has to be searched in the help file for me to get started. I need this urgently and our organization is stuck in the purchase of the SDK.

Thanks in advance. I hope you understand the importance of situation.

Regards,
Ishan P

[Betsy]

Dear Ishan P,

Sorry for late reply as weekend.
Sorry that there is no way to extract text from a given area (rectangle).

Sincerely,
Betsy
E-iceblue support team

[ipandya]

Hi Betsy,

Thank you for your response.

I would like to know one more thing, I would like to remove encryption from a PDF, please find below sample code for the removal of encryption:

Code: Select all

PdfDocument doc = new PdfDocument();
pdfDoc.Security.OwnerPassword = "";
pdfDoc.Security.UserPassword = "";
pdfDoc.Security.Permissions = PdfPermissionsFlags.AccessibilityCopyContent | PdfPermissionsFlags.AssembleDocument | PdfPermissionsFlags.CopyContent | PdfPermissionsFlags.Default | PdfPermissionsFlags.EditAnnotations | PdfPermissionsFlags.EditContent | PdfPermissionsFlags.FillFields | PdfPermissionsFlags.FullQualityPrint | PdfPermissionsFlags.Print;

pdfDoc.SaveToFile(outputFile.OutPutFilePath);
pdfDoc.Close();


My problem here is that the file does not remove encryption level when I remove the password(Attached screen shot for the same). Is there any other way to remove the owner and user password as well as encryption levels?

Thanks in advance.

Regards,
Ishan Pandya

[Betsy]

Dear Ishan,

Thanks for your feedback.
Please try to only set the PdfPermissionsFlags as Default, here is sample code for your reference:

Code: Select all

            doc.Security.OwnerPassword = "";
            doc.Security.UserPassword = "";
            doc.Security.Permissions = PdfPermissionsFlags.Default;

If this issue still exists, please provide us your sample document for investigation.

Sincerely,
Betsy
E-iceblue support team

[ipandya]

Hi Betsy,

Thank you for your help. It worked. Much appreciated.


Regards,
Ishan P.

[Betsy]

Dear Ishan,

Thanks for your feedback.
Welcome to write to us again for further question.

Sincerely,
Betsy
E-iceblue support team

[ipandya]

Hi Betsy,

I have one more request for you. Your help is much appriciated.

I have a raster PDF and I am trying to convert it to image. This PDF contains only images on the Pages. However, when I try to perform the operation the execution does not complete and exit the API call of "SaveAsImage". Can you help me with this?

Regards,
Ishan P

[Betsy]

Dear Ishan,

Sorry for late reply as weekend.
Could you please provide us the sample file and the codes you were using ? That would be very helpful to investigate this issue.
Also, please describe your issue in detail.

Thanks,
Betsy
E-iceblue support team