如何使用pdfrw库编辑可编辑的pdf? [英] How to edit editable pdf using the pdfrw library?

问题描述

我一直在研究如何使用Python编辑PDF，并且发现了这篇文章:
如何使用Python填充可填充PDF

I been doing research on how to edit PDF using Python and i have found this article:
How to Populate Fillable PDF's with Python

但是，一旦程序运行并打开PDF，就会出现问题，仅当您单击显示数据的标签时，才填充该文档，而当您单击鼠标时，该文档又消失了.这是可以在网上找到别人编写的代码.

However there is a problem once the program runs and you open the PDF the document is not populated only when you click on the tags it shows the data and when you click away it disappears again. This is code that can be found online that someone else has written.

#! /usr/bin/python

import os
import pdfrw


INVOICE_TEMPLATE_PATH = 'invoice_template.pdf'
INVOICE_OUTPUT_PATH = 'invoice.pdf'


ANNOT_KEY = '/Annots'
ANNOT_FIELD_KEY = '/T'
ANNOT_VAL_KEY = '/V'
ANNOT_RECT_KEY = '/Rect'
SUBTYPE_KEY = '/Subtype'
WIDGET_SUBTYPE_KEY = '/Widget'


def write_fillable_pdf(input_pdf_path, output_pdf_path, data_dict):
    template_pdf = pdfrw.PdfReader(input_pdf_path)
    annotations = template_pdf.pages[0][ANNOT_KEY]
    for annotation in annotations:
        if annotation[SUBTYPE_KEY] == WIDGET_SUBTYPE_KEY:
            if annotation[ANNOT_FIELD_KEY]:
                key = annotation[ANNOT_FIELD_KEY][1:-1]
                if key in data_dict.keys():
                    annotation.update(
                        pdfrw.PdfDict(V='{}'.format(data_dict[key]))
                    )
    pdfrw.PdfWriter().write(output_pdf_path, template_pdf)


data_dict = {
   'business_name_1': 'Bostata',
   'customer_name': 'company.io',
   'customer_email': '[e-mail]',
   'invoice_number': '102394',
   'send_date': '2018-02-13',
   'due_date': '2018-03-13',
   'note_contents': 'Thank you for your business, Joe',
   'item_1': 'Data consulting services',
   'item_1_quantity': '10 hours',
   'item_1_price': '$200/hr',
   'item_1_amount': '$2000',
   'subtotal': '$2000',
   'tax': '0',
   'discounts': '0',
   'total': '$2000',
   'business_name_2': 'Bostata LLC',
   'business_email_address': '[e-mail]',
   'business_phone_number': '[phone]'
}

if __name__ == '__main__':
    write_fillable_pdf(INVOICE_TEMPLATE_PATH, INVOICE_OUTPUT_PATH, data_dict)

推荐答案

我发现，如果您添加NeedAppearances参数，则可以解决您的问题:

I figure out that if you add NeedAppearances param you will solve your problem:

template_pdf = pdfrw.PdfReader(TEMPLATE_PATH)
template_pdf.Root.AcroForm.update(pdfrw.PdfDict(NeedAppearances=pdfrw.PdfObject('true'))) 

这篇关于如何使用pdfrw库编辑可编辑的pdf?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！