我有一个项目,我需要填写预制的PDF,而要实现这一目标,我想到的最合乎逻辑的解决方案是将预制的PDF制成PDF表单,因此应该有一些标签,其中的输入值应该然后,我可以浏览PDF中的表单标签,并将它们与值字典对齐。
我已经使用 PyPDF2 完成了此任务。总体而言,我拍摄了一个Web表单的图像,然后打开Acrobat并根据图像中看到的字段创建了一个PDF表单,然后使用 PyPDF2 填写了PDF表单字段,但需要注意的是在某些浏览器中(那些就是Firefox)打印那些填充值似乎是错误的。
我如何将我的PDF表单转换为标准/平面PDF,这样我可以保留预先填充的值,但是却丢失了可编辑字段(因为我认为这是问题所在)?
from io import BytesIO
import PyPDF2
from django.http import HttpResponse
from PyPDF2.generic import BooleanObject, NameObject, IndirectObject
def pdf_view(request):
template = 'templates/template.pdf'
outfile = "templates/test.pdf"
input_stream = open(template, "rb")
pdf_reader = PyPDF2.PdfFileReader(input_stream, strict=False)
if "/AcroForm" in pdf_reader.trailer["/Root"]:
pdf_reader.trailer["/Root"]["/AcroForm"].update(
{NameObject("/NeedAppearances"): BooleanObject(True)})
pdf_writer = PyPDF2.PdfFileWriter()
set_need_appearances_writer(pdf_writer)
if "/AcroForm" in pdf_writer._root_object:
# Acro form is form field, set needs appearances to fix printing issues
pdf_writer._root_object["/AcroForm"].update(
{NameObject("/NeedAppearances"): BooleanObject(True)})
data_dict = {
'first_name': 'John',
'last_name': 'Smith',
'email': 'mail@mail.com',
'phone': '889-998-9967',
'company': 'Amazing Inc.',
'job_title': 'Dev',
'street': '123 Main Way',
'city': 'Johannesburg',
'state': 'New Mexico',
'zip': 96705,
'country': 'USA',
'topic': 'Who cares...'
}
pdf_writer.addPage(pdf_reader.getPage(0))
pdf_writer.updatePageFormFieldValues(pdf_writer.getPage(0), data_dict)
output_stream = BytesIO()
pdf_writer.write(output_stream)
# print(fill_in_pdf(template, data_dict).getvalue())
# fill_in_pdf(template, data_dict).getvalue()
response = HttpResponse(output_stream.getvalue(), content_type='application/pdf')
response['Content-Disposition'] = 'inline; filename="completed.pdf"'
input_stream.close()
return response
def set_need_appearances_writer(writer):
try:
catalog = writer._root_object
# get the AcroForm tree and add "/NeedAppearances attribute
if "/AcroForm" not in catalog:
writer._root_object.update({
NameObject("/AcroForm"): IndirectObject(len(writer._objects), 0, writer)})
need_appearances = NameObject("/NeedAppearances")
writer._root_object["/AcroForm"][need_appearances] = BooleanObject(True)
except Exception as e:
print('set_need_appearances_writer() catch : ', repr(e))
return writer
答案 0 :(得分:2)
解决方案非常简单,如有疑问,请阅读文档(第552/978页):
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/pdf_reference_archives/PDFReference.pdf
我要做的就是将字段标志的位位置更改为1,使字段变为ReadOnly,如下所示:
else: