在Zotero中使用PDF2zh
在本地安装最新的PDF2zh
pip install pdf2zh # 安装pdf2zh
或
pip install --upgrade pdf2zh # 之前已经安装, 更新本插件当前开发使用的 pdf2zh版本: v1.9.0
根据以下python脚本的注释, 按照个人需求修改配置，然后运行:
from flask import Flask, request, jsonify
import os
import base64
import subprocess
from flask import Flask, send_file, abort
from pypdf import PdfWriter, PdfReader
from pypdf.generic import RectangleObject
import sys
####################################### 配置 #######################################
pdf2zh = "pdf2zh" # 设置pdf2zh指令: 默认为'pdf2zh'
thread_num = 4 # 设置线程数: 默认为4
port_num = 8888 # 设置端口号: 默认为8888
service = 'bing' # 设置翻译服务: 默认为bing
translated_dir = "./translated/" # 设置翻译文件的输出路径(临时路径, 可以在翻译后删除)
config_path = './config.json' # 设置配置文件路径
######################################################################################
def get_absolute_path(path): # 获取绝对路径
if os.path.isabs(path):
return path
else:
return os.path.abspath(path)
def get_file_from_request(request): # 从request中解析pdf文件
data = request.get_json()
path = data.get('filePath')
path = path.replace('\\', '/') # 把所有反斜杠\替换为正斜杠/ (Windows->Linux/MacOS)
if not os.path.exists(path):
file_content = data.get('fileContent')
input_path = os.path.join(translated_dir, os.path.basename(path))
if file_content:
if file_content.startswith('data:application/pdf;base64,'): # 移除 Base64 编码中的前缀(如果有)
file_content = file_content[len('data:application/pdf;base64,'):]
file_data = base64.b64decode(file_content) # 解码 Base64 内容
with open(input_path, 'wb') as f:
f.write(file_data)
else:
input_path = path
return input_path
app = Flask(__name__)
@app.route('/translate', methods=['POST'])
def translate():
print("### translate ###")
input_path = get_file_from_request(request)
try:
os.makedirs(translated_dir, exist_ok=True)
print("### translating ###: ", input_path)
# 执行pdf2zh翻译, 用户可以自定义命令内容:
command = [
pdf2zh,
input_path,
'--t', str(thread_num),
'--output', translated_dir,
'--service', service
]
subprocess.run(command, check=False)
abs_translated_dir = get_absolute_path(translated_dir)
print("abs_translated_dir: ", abs_translated_dir)
translated_path1 = os.path.join(abs_translated_dir, os.path.basename(input_path).replace('.pdf', '-mono.pdf'))
translated_path2 = os.path.join(abs_translated_dir, os.path.basename(input_path).replace('.pdf', '-dual.pdf'))
if not os.path.exists(translated_path1) or not os.path.exists(translated_path2):
raise Exception("pdf2zh failed to generate translated files")
return jsonify({'status': 'success', 'translatedPath1': translated_path1, 'translatedPath2': translated_path2}), 200
except Exception as e:
print(f"Error: {e}")
return jsonify({'status': 'error', 'message': str(e)}), 500
@app.route('/translatedFile/<filename>')
def download(filename):
directory = translated_dir
abs_directory = get_absolute_path(directory)
file_path = os.path.join(abs_directory, filename)
if not os.path.isfile(file_path):
return "File not found", 404
return send_file(file_path, as_attachment=True, download_name=filename)
# 新增了一个cut pdf函数，用于切割双栏pdf文件
def split_and_merge_pdf(input_pdf, output_pdf):
writer = PdfWriter()
if 'dual' in input_pdf:
reader1_1 = PdfReader(input_pdf)
reader1_2 = PdfReader(input_pdf)
reader2_1 = PdfReader(input_pdf)
reader2_2 = PdfReader(input_pdf)
for i in range(0, len(reader1_1.pages), 2):
page1_1 = reader1_1.pages[i]
page1_2 = reader1_2.pages[i]
page2_1 = reader2_1.pages[i+1]
page2_2 = reader2_2.pages[i+1]
original_media_box = page1_1.mediabox
width = original_media_box.width
height = original_media_box.height
left_page_1 = page1_1
left_page_1.mediabox = RectangleObject((0, 0, width / 2, height))
left_page_2 = page2_1
left_page_2.mediabox = RectangleObject((0, 0, width / 2, height))
right_page_1 = page1_2
right_page_1.mediabox = RectangleObject((width / 2, 0, width, height))
right_page_2 = page2_2
right_page_2.mediabox = RectangleObject((width / 2, 0, width, height))
writer.add_page(left_page_1)
writer.add_page(left_page_2)
writer.add_page(right_page_1)
writer.add_page(right_page_2)
else:
reader1 = PdfReader(input_pdf)
reader2 = PdfReader(input_pdf)
for i in range(len(reader1.pages)):
page1 = reader1.pages[i]
page2 = reader2.pages[i]
original_media_box = page1.mediabox
width = original_media_box.width
height = original_media_box.height
left_page = page1
left_page.mediabox = RectangleObject((0, 0, width / 2, height))
right_page = page2
right_page.mediabox = RectangleObject((width / 2, 0, width, height))
writer.add_page(left_page)
writer.add_page(right_page)
with open(output_pdf, "wb") as output_file:
writer.write(output_file)
# 新增了一个cut接口，用于切割双栏pdf文件
@app.route('/cut', methods=['POST'])
def cut():
print("### cut ###")
input_path = get_file_from_request(request)
try:
os.makedirs(translated_dir, exist_ok=True)
print("### cutting ###: ", input_path)
abs_translated_dir = get_absolute_path(translated_dir)
translated_path = os.path.join(abs_translated_dir, os.path.basename(input_path).replace('.pdf', '-cut.pdf'))
split_and_merge_pdf(input_path, translated_path)
if not os.path.exists(translated_path):
raise Exception("failed to generate cutted files")
return jsonify({'status': 'success'}), 200
except Exception as e:
print(f"Error: {e}")
return jsonify({'status': 'error', 'message': str(e)}), 500
if __name__ == '__main__':
if len(sys.argv) > 1: # 命令行参数1: service
service = sys.argv[1]
if len(sys.argv) > 2: # 命令行参数2: thread_num
thread_num = int(sys.argv[2])
app.run(host='0.0.0.0', port=port_num)推荐使用霞鹜文楷字体, 配置方法:
- 下载霞鹜文楷字体: https://github.com/lxgw/LxgwWenKai/releases/download/v1.510/LXGWWenKai-Regular.ttf
- 新建config.json文件
{
"NOTO_FONT_PATH": "./LXGWWenKai-Regular.ttf"
}NOTO_FONT_PATH为您的自定义字体路径
- 修改python脚本:
步骤1: 设置配置文件路径:
config_path = './config.json' # 设置配置文件路径
步骤二: 在command中添加config_path选项
command = [
pdf2zh,
input_path,
'--t', str(thread_num),
'--output', translated_dir,
'--service', service,
'--config', config_path # 这是添加的配置文件路径
]- 其他配置的修改同理: 具体参考: PDF2zh Config File
在Zotero-设置中，输入您的Python Server IP，按回车键确认。
默认为: http://localhost:8888
右键选择条目或者附件 - 点击 Translate PDF
- 如果选择条目的话，将会自动选择该条目下创建时间最早的PDF。
条目中将会添加两个翻译后的文件
✨ 将双栏论文剪切拼接为单栏显示，适配手机阅读!
右键选择条目或者附件 - 点击 Cut PDF
- 如果选择条目的话，将会自动选择该条目下创建时间最早的PDF。
条目中将会添加一个分割后的文件
- @Byaidu PDF2zh
- @windingwind zotero-plugin-template
欢迎提issue或者参与贡献
- 支持远程部署
- 跨平台部署测试 (on-going)
- 加入插件市场
- 支持在zotero perference中设置pdf2zh参数