如何使用Python将PDF转换为MP3？
一、PDF转为MP3我们平常看到很多文件都是PDF格式，网上的各类书籍多为此格式。有时候不方便阅读，或者怕费眼睛伤颈椎，那么有没有一种方法可以把它变为音频，这样上下班路上也就可以听一听。这里做个科普，什么是TTS？TTS（TextToSpeech，文本转语音）是语音合成应用的一种，它将储存于电脑中的文件，如帮助文件或者网页，转换成自然语音输出。edge-tts就是将微软的语音合成技术，他是将edge浏览器里提供的tts打包成Python第三方包，这样就可以免费调用微软的语音合成技术。二、准备工作将PDF转
一、PDF转为MP3
我们平常看到很多文件都是PDF格式，网上的各类书籍多为此格式。有时候不方便阅读，或者怕费眼睛伤颈椎，那么有没有一种方法可以把它变为音频，这样上下班路上也就可以听一听。
这里做个科普，什么是TTS？TTS（Text To Speech，文本转语音）是语音合成应用的一种，它将储存于电脑中的文件，如帮助文件或者网页，转换成自然语音输出。edge-tts就是将微软的语音合成技术，他是将edge浏览器里提供的tts打包成Python第三方包，这样就可以免费调用微软的语音合成技术。
二、准备工作
将PDF转为音频MP3文件，需要两步。第一步，将pdf转为txt文本；第二步，将txt转为音频。所以我们需要以下两个库。
1. 安装pdfplumber包，用于将pdf转为txt
(base) C:\Users\Administrator>pip install pdfplumber
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Successfully installed Wand-0.6.11 pdfminer.six-20221105 pdfplumber-0.9.0
2. 安装edge-tts包，用于将txt转为音频
(base) C:\Users\Administrator>pip install edge-tts
Collecting edge-tts
Downloading edge_tts-6.1.5-py3-none-any.whl (27 kB)
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Successfully installed edge-tts-6.1.5
三、代码很简单
# -*- coding: utf-8 -*-
import pdfplumber
import asyncio
import os
import edge_tts
from edge_tts import VoicesManager
async def txt2mp3(txt,mp3,announcer='Microsoft Server Speech Text to Speech Voice (zh-CN, XiaoxiaoNeural)') -> None:
# 将文本转换为mp3音频
communicate = edge_tts.Communicate(txt, announcer)
await communicate.save(mp3)
async def get_announcer(Gender="Female", Language="zh"):
voices = await VoicesManager.create()
voice = voices.find(Gender=Gender, Language=Language)
print(voice)
if __name__ == "__main__":
rootdir = 'd:\\python_csdn\\files\\'
filename = '道德经.pdf'
pdf_path = rootdir+filename
announcer='Microsoft Server Speech Text to Speech Voice (zh-CN, XiaoxiaoNeural)'
if 0:
# 查看可用播音角色(性别女性，语言为中文)
asyncio.run(get_announcer(Gender="Female", Language="zh"))
if 1:
# 读取pdf并提取文本到txt文件，并将其内容转为mp3音频文件。
page_num = 0
with pdfplumber.open(pdf_path) as pdf:
for page in pdf.pages:
textdata = page.extract_text().replace("\n", "")#提取文字后删除末尾换行，以免转音频卡顿
page_num += 1
txt_path = pdf_path.split(".")[0]+"{:03d}".format(page_num)+'.txt'
if len(textdata)>0:
with open(txt_path ,'a',encoding='utf-8') as txt:
txt.write(textdata)
print('第'+str(page_num)+'页:',textdata)
mp3_path = txt_path.split(".")[0]+'.mp3'
asyncio.run(txt2mp3(textdata,mp3_path))
print('第'+str(page_num)+'个txt文件已转音频:',mp3_path)
print('Pdf文件共有'+str(page_num)+'页，已转换完成')很快就搞定啦，见下图。以后再想听PDF就把上面代码跑起来！
四、变更播音员
在以上程序中修改以下代码if条件为1，即可查看可用播音角色。
if 1: # 查看可用播音角色(性别女性，语言为中文)，男性Gender="Male" asyncio.run(get_announcer(Gender="Female", Language="zh"))
运行后结果为一个list，通过json格式化后，如下所示。变更播音员只需要使用Name值替换前面announcer值即可。是不是很简单？
[{
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-HK, HiuGaaiNeural)',
'ShortName': 'zh-HK-HiuGaaiNeural',
'Gender': 'Female',
'Locale': 'zh-HK',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft HiuGaai Online (Natural) - Chinese (Cantonese Traditional)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['General'],
'VoicePersonalities': ['Friendly', 'Positive']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-HK, HiuMaanNeural)',
'ShortName': 'zh-HK-HiuMaanNeural',
'Gender': 'Female',
'Locale': 'zh-HK',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft HiuMaan Online (Natural) - Chinese (Hong Kong)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['General'],
'VoicePersonalities': ['Friendly', 'Positive']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-CN, XiaoxiaoNeural)',
'ShortName': 'zh-CN-XiaoxiaoNeural',
'Gender': 'Female',
'Locale': 'zh-CN',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft Xiaoxiao Online (Natural) - Chinese (Mainland)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['News', 'Novel'],
'VoicePersonalities': ['Warm']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-CN, XiaoyiNeural)',
'ShortName': 'zh-CN-XiaoyiNeural',
'Gender': 'Female',
'Locale': 'zh-CN',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft Xiaoyi Online (Natural) - Chinese (Mainland)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['Cartoon', 'Novel'],
'VoicePersonalities': ['Lively']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-CN-liaoning, XiaobeiNeural)',
'ShortName': 'zh-CN-liaoning-XiaobeiNeural',
'Gender': 'Female',
'Locale': 'zh-CN-liaoning',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft Xiaobei Online (Natural) - Chinese (Northeastern Mandarin)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['Dialect'],
'VoicePersonalities': ['Humorous']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-TW, HsiaoChenNeural)',
'ShortName': 'zh-TW-HsiaoChenNeural',
'Gender': 'Female',
'Locale': 'zh-TW',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft HsiaoChen Online (Natural) - Chinese (Taiwan)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['General'],
'VoicePersonalities': ['Friendly', 'Positive']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-TW, HsiaoYuNeural)',
'ShortName': 'zh-TW-HsiaoYuNeural',
'Gender': 'Female',
'Locale': 'zh-TW',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft HsiaoYu Online (Natural) - Chinese (Taiwanese Mandarin)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['General'],
'VoicePersonalities': ['Friendly', 'Positive']
},
'Language': 'zh'
}, {
'Name': 'Microsoft Server Speech Text to Speech Voice (zh-CN-shaanxi, XiaoniNeural)',
'ShortName': 'zh-CN-shaanxi-XiaoniNeural',
'Gender': 'Female',
'Locale': 'zh-CN-shaanxi',
'SuggestedCodec': 'audio-24khz-48kbitrate-mono-mp3',
'FriendlyName': 'Microsoft Xiaoni Online (Natural) - Chinese (Zhongyuan Mandarin Shaanxi)',
'Status': 'GA',
'VoiceTag': {
'ContentCategories': ['Dialect'],
'VoicePersonalities': ['Bright']
},
'Language': 'zh'
}]总结
查看所有播音角色，执行命令：>edge-tts --list-voices
(base) C:\Users\Administrator>edge-tts --list-voices Name: af-ZA-AdriNeural Gender: Female Name: af-ZA-WillemNeural Gender: Male Name: am-ET-AmehaNeural Gender: Male Name: am-ET-MekdesNeural Gender: Female Name: ar-AE-FatimaNeural Gender: Female Name: ar-AE-HamdanNeural Gender: Male Name: ar-BH-AliNeural Gender: Male Name: ar-BH-LailaNeural Gender: Female Name: ar-DZ-AminaNeural Gender: Female Name: ar-DZ-IsmaelNeural Gender: Male Name: ar-EG-SalmaNeural Gender: Female Name: ar-EG-ShakirNeural Gender: Male Name: ar-IQ-BasselNeural Gender: Male Name: ar-IQ-RanaNeural Gender: Female Name: ar-JO-SanaNeural Gender: Female Name: ar-JO-TaimNeural Gender: Male Name: ar-KW-FahedNeural Gender: Male Name: ar-KW-NouraNeural Gender: Female Name: ar-LB-LaylaNeural Gender: Female Name: ar-LB-RamiNeural Gender: Male Name: ar-LY-ImanNeural Gender: Female Name: ar-LY-OmarNeural Gender: Male Name: ar-MA-JamalNeural Gender: Male Name: ar-MA-MounaNeural Gender: Female Name: ar-OM-AbdullahNeural Gender: Male Name: ar-OM-AyshaNeural Gender: Female Name: ar-QA-AmalNeural Gender: Female Name: ar-QA-MoazNeural Gender: Male Name: ar-SA-HamedNeural Gender: Male Name: ar-SA-ZariyahNeural Gender: Female Name: ar-SY-AmanyNeural Gender: Female Name: ar-SY-LaithNeural Gender: Male Name: ar-TN-HediNeural Gender: Male Name: ar-TN-ReemNeural Gender: Female Name: ar-YE-MaryamNeural Gender: Female Name: ar-YE-SalehNeural Gender: Male Name: az-AZ-BabekNeural Gender: Male Name: az-AZ-BanuNeural Gender: Female Name: bg-BG-BorislavNeural Gender: Male Name: bg-BG-KalinaNeural Gender: Female Name: bn-BD-NabanitaNeural Gender: Female Name: bn-BD-PradeepNeural Gender: Male Name: bn-IN-BashkarNeural Gender: Male Name: bn-IN-TanishaaNeural Gender: Female Name: bs-BA-GoranNeural Gender: Male Name: bs-BA-VesnaNeural Gender: Female Name: ca-ES-EnricNeural Gender: Male Name: ca-ES-JoanaNeural Gender: Female Name: cs-CZ-AntoninNeural Gender: Male Name: cs-CZ-VlastaNeural Gender: Female Name: cy-GB-AledNeural Gender: Male Name: cy-GB-NiaNeural Gender: Female Name: da-DK-ChristelNeural Gender: Female Name: da-DK-JeppeNeural Gender: Male Name: de-AT-IngridNeural Gender: Female Name: de-AT-JonasNeural Gender: Male Name: de-CH-JanNeural Gender: Male Name: de-CH-LeniNeural Gender: Female Name: de-DE-AmalaNeural Gender: Female Name: de-DE-ConradNeural Gender: Male Name: de-DE-KatjaNeural Gender: Female Name: de-DE-KillianNeural Gender: Male Name: el-GR-AthinaNeural Gender: Female Name: el-GR-NestorasNeural Gender: Male Name: en-AU-NatashaNeural Gender: Female Name: en-AU-WilliamNeural Gender: Male Name: en-CA-ClaraNeural Gender: Female Name: en-CA-LiamNeural Gender: Male Name: en-GB-LibbyNeural Gender: Female Name: en-GB-MaisieNeural Gender: Female Name: en-GB-RyanNeural Gender: Male Name: en-GB-SoniaNeural Gender: Female Name: en-GB-ThomasNeural Gender: Male Name: en-HK-SamNeural Gender: Male Name: en-HK-YanNeural Gender: Female Name: en-IE-ConnorNeural Gender: Male Name: en-IE-EmilyNeural Gender: Female Name: en-IN-NeerjaExpressiveNeural Gender: Female Name: en-IN-NeerjaNeural Gender: Female Name: en-IN-PrabhatNeural Gender: Male Name: en-KE-AsiliaNeural Gender: Female Name: en-KE-ChilembaNeural Gender: Male Name: en-NG-AbeoNeural Gender: Male Name: en-NG-EzinneNeural Gender: Female Name: en-NZ-MitchellNeural Gender: Male Name: en-NZ-MollyNeural Gender: Female Name: en-PH-JamesNeural Gender: Male Name: en-PH-RosaNeural Gender: Female Name: en-SG-LunaNeural Gender: Female Name: en-SG-WayneNeural Gender: Male Name: en-TZ-ElimuNeural Gender: Male Name: en-TZ-ImaniNeural Gender: Female Name: en-US-AnaNeural Gender: Female Name: en-US-AriaNeural Gender: Female Name: en-US-ChristopherNeural Gender: Male Name: en-US-EricNeural Gender: Male Name: en-US-GuyNeural Gender: Male Name: en-US-JennyNeural Gender: Female Name: en-US-MichelleNeural Gender: Female Name: en-US-RogerNeural Gender: Male Name: en-US-SteffanNeural Gender: Male Name: en-ZA-LeahNeural Gender: Female Name: en-ZA-LukeNeural Gender: Male Name: es-AR-ElenaNeural Gender: Female Name: es-AR-TomasNeural Gender: Male Name: es-BO-MarceloNeural Gender: Male Name: es-BO-SofiaNeural Gender: Female Name: es-CL-CatalinaNeural Gender: Female Name: es-CL-LorenzoNeural Gender: Male Name: es-CO-GonzaloNeural Gender: Male Name: es-CO-SalomeNeural Gender: Female Name: es-CR-JuanNeural Gender: Male Name: es-CR-MariaNeural Gender: Female Name: es-CU-BelkysNeural Gender: Female Name: es-CU-ManuelNeural Gender: Male Name: es-DO-EmilioNeural Gender: Male Name: es-DO-RamonaNeural Gender: Female Name: es-EC-AndreaNeural Gender: Female Name: es-EC-LuisNeural Gender: Male Name: es-ES-AlvaroNeural Gender: Male Name: es-ES-ElviraNeural Gender: Female Name: es-GQ-JavierNeural Gender: Male Name: es-GQ-TeresaNeural Gender: Female Name: es-GT-AndresNeural Gender: Male Name: es-GT-MartaNeural Gender: Female Name: es-HN-CarlosNeural Gender: Male Name: es-HN-KarlaNeural Gender: Female Name: es-MX-DaliaNeural Gender: Female Name: es-MX-JorgeNeural Gender: Male Name: es-NI-FedericoNeural Gender: Male Name: es-NI-YolandaNeural Gender: Female Name: es-PA-MargaritaNeural Gender: Female Name: es-PA-RobertoNeural Gender: Male Name: es-PE-AlexNeural Gender: Male Name: es-PE-CamilaNeural Gender: Female Name: es-PR-KarinaNeural Gender: Female Name: es-PR-VictorNeural Gender: Male Name: es-PY-MarioNeural Gender: Male Name: es-PY-TaniaNeural Gender: Female Name: es-SV-LorenaNeural Gender: Female Name: es-SV-RodrigoNeural Gender: Male Name: es-US-AlonsoNeural Gender: Male Name: es-US-PalomaNeural Gender: Female Name: es-UY-MateoNeural Gender: Male Name: es-UY-ValentinaNeural Gender: Female Name: es-VE-PaolaNeural Gender: Female Name: es-VE-SebastianNeural Gender: Male Name: et-EE-AnuNeural Gender: Female Name: et-EE-KertNeural Gender: Male Name: fa-IR-DilaraNeural Gender: Female Name: fa-IR-FaridNeural Gender: Male Name: fi-FI-HarriNeural Gender: Male Name: fi-FI-NooraNeural Gender: Female Name: fil-PH-AngeloNeural Gender: Male Name: fil-PH-BlessicaNeural Gender: Female Name: fr-BE-CharlineNeural Gender: Female Name: fr-BE-GerardNeural Gender: Male Name: fr-CA-AntoineNeural Gender: Male Name: fr-CA-JeanNeural Gender: Male Name: fr-CA-SylvieNeural Gender: Female Name: fr-CH-ArianeNeural Gender: Female Name: fr-CH-FabriceNeural Gender: Male Name: fr-FR-DeniseNeural Gender: Female Name: fr-FR-EloiseNeural Gender: Female Name: fr-FR-HenriNeural Gender: Male Name: ga-IE-ColmNeural Gender: Male Name: ga-IE-OrlaNeural Gender: Female Name: gl-ES-RoiNeural Gender: Male Name: gl-ES-SabelaNeural Gender: Female Name: gu-IN-DhwaniNeural Gender: Female Name: gu-IN-NiranjanNeural Gender: Male Name: he-IL-AvriNeural Gender: Male Name: he-IL-HilaNeural Gender: Female Name: hi-IN-MadhurNeural Gender: Male Name: hi-IN-SwaraNeural Gender: Female Name: hr-HR-GabrijelaNeural Gender: Female Name: hr-HR-SreckoNeural Gender: Male Name: hu-HU-NoemiNeural Gender: Female Name: hu-HU-TamasNeural Gender: Male Name: id-ID-ArdiNeural Gender: Male Name: id-ID-GadisNeural Gender: Female Name: is-IS-GudrunNeural Gender: Female Name: is-IS-GunnarNeural Gender: Male Name: it-IT-DiegoNeural Gender: Male Name: it-IT-ElsaNeural Gender: Female Name: it-IT-IsabellaNeural Gender: Female Name: ja-JP-KeitaNeural Gender: Male Name: ja-JP-NanamiNeural Gender: Female Name: jv-ID-DimasNeural Gender: Male Name: jv-ID-SitiNeural Gender: Female Name: ka-GE-EkaNeural Gender: Female Name: ka-GE-GiorgiNeural Gender: Male Name: kk-KZ-AigulNeural Gender: Female Name: kk-KZ-DauletNeural Gender: Male Name: km-KH-PisethNeural Gender: Male Name: km-KH-SreymomNeural Gender: Female Name: kn-IN-GaganNeural Gender: Male Name: kn-IN-SapnaNeural Gender: Female Name: ko-KR-InJoonNeural Gender: Male Name: ko-KR-SunHiNeural Gender: Female Name: lo-LA-ChanthavongNeural Gender: Male Name: lo-LA-KeomanyNeural Gender: Female Name: lt-LT-LeonasNeural Gender: Male Name: lt-LT-OnaNeural Gender: Female Name: lv-LV-EveritaNeural Gender: Female Name: lv-LV-NilsNeural Gender: Male Name: mk-MK-AleksandarNeural Gender: Male Name: mk-MK-MarijaNeural Gender: Female Name: ml-IN-MidhunNeural Gender: Male Name: ml-IN-SobhanaNeural Gender: Female Name: mn-MN-BataaNeural Gender: Male Name: mn-MN-YesuiNeural Gender: Female Name: mr-IN-AarohiNeural Gender: Female Name: mr-IN-ManoharNeural Gender: Male Name: ms-MY-OsmanNeural Gender: Male Name: ms-MY-YasminNeural Gender: Female Name: mt-MT-GraceNeural Gender: Female Name: mt-MT-JosephNeural Gender: Male Name: my-MM-NilarNeural Gender: Female Name: my-MM-ThihaNeural Gender: Male Name: nb-NO-FinnNeural Gender: Male Name: nb-NO-PernilleNeural Gender: Female Name: ne-NP-HemkalaNeural Gender: Female Name: ne-NP-SagarNeural Gender: Male Name: nl-BE-ArnaudNeural Gender: Male Name: nl-BE-DenaNeural Gender: Female Name: nl-NL-ColetteNeural Gender: Female Name: nl-NL-FennaNeural Gender: Female Name: nl-NL-MaartenNeural Gender: Male Name: pl-PL-MarekNeural Gender: Male Name: pl-PL-ZofiaNeural Gender: Female Name: ps-AF-GulNawazNeural Gender: Male Name: ps-AF-LatifaNeural Gender: Female Name: pt-BR-AntonioNeural Gender: Male Name: pt-BR-FranciscaNeural Gender: Female Name: pt-PT-DuarteNeural Gender: Male Name: pt-PT-RaquelNeural Gender: Female Name: ro-RO-AlinaNeural Gender: Female Name: ro-RO-EmilNeural Gender: Male Name: ru-RU-DmitryNeural Gender: Male Name: ru-RU-SvetlanaNeural Gender: Female Name: si-LK-SameeraNeural Gender: Male Name: si-LK-ThiliniNeural Gender: Female Name: sk-SK-LukasNeural Gender: Male Name: sk-SK-ViktoriaNeural Gender: Female Name: sl-SI-PetraNeural Gender: Female Name: sl-SI-RokNeural Gender: Male Name: so-SO-MuuseNeural Gender: Male Name: so-SO-UbaxNeural Gender: Female Name: sq-AL-AnilaNeural Gender: Female Name: sq-AL-IlirNeural Gender: Male Name: sr-RS-NicholasNeural Gender: Male Name: sr-RS-SophieNeural Gender: Female Name: su-ID-JajangNeural Gender: Male Name: su-ID-TutiNeural Gender: Female Name: sv-SE-MattiasNeural Gender: Male Name: sv-SE-SofieNeural Gender: Female Name: sw-KE-RafikiNeural Gender: Male Name: sw-KE-ZuriNeural Gender: Female Name: sw-TZ-DaudiNeural Gender: Male Name: sw-TZ-RehemaNeural Gender: Female Name: ta-IN-PallaviNeural Gender: Female Name: ta-IN-ValluvarNeural Gender: Male Name: ta-LK-KumarNeural Gender: Male Name: ta-LK-SaranyaNeural Gender: Female Name: ta-MY-KaniNeural Gender: Female Name: ta-MY-SuryaNeural Gender: Male Name: ta-SG-AnbuNeural Gender: Male Name: ta-SG-VenbaNeural Gender: Female Name: te-IN-MohanNeural Gender: Male Name: te-IN-ShrutiNeural Gender: Female Name: th-TH-NiwatNeural Gender: Male Name: th-TH-PremwadeeNeural Gender: Female Name: tr-TR-AhmetNeural Gender: Male Name: tr-TR-EmelNeural Gender: Female Name: uk-UA-OstapNeural Gender: Male Name: uk-UA-PolinaNeural Gender: Female Name: ur-IN-GulNeural Gender: Female Name: ur-IN-SalmanNeural Gender: Male Name: ur-PK-AsadNeural Gender: Male Name: ur-PK-UzmaNeural Gender: Female Name: uz-UZ-MadinaNeural Gender: Female Name: 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刚在Windows安装好Python却不知道如何启动？本文详细演示如何通过开始菜单找到并打开IDLE集成开发环境，以及如何在PowerShell或命令提示符中使用python和py命令启动交互式解释器、运行.py脚本文件。包含退出解释器的方法及常见启动问题排查，帮助初学者快速验证安装成功并开始编写代码。
针对Windows初学者的Python安装实战指南。详细讲解如何从Python官网下载匹配架构的安装包，重点演示安装首屏勾选“Add python.exe to PATH”的关键操作，并提供使用python --version和py命令验证环境变量的具体步骤，帮助新手快速搭建开发环境并排查路径问题。
PDF文件加密后无法编辑或打印？本文整理4种高效解锁方法：使用在线PDF解锁工具快速处理、本地PDF转换器离线操作、Adobe Acrobat Reader导出以及PDF Password Remover专用工具。详细步骤指导如何备份文件、选择工具并验证解锁结果，确保文档安全可用。
本文介绍使用pdf.cn在线工具为PDF添加文字水印的操作流程。核心步骤包括：进入工具页、上传PDF文件、设置水印内容与位置、执行处理及下载结果。适用于临时办公赶工或提交材料前的预处理，无需安装复杂软件。
本文详解三种在线PDF加密工具的使用方法，涵盖极轻PDF、PDF Candy和Sejda。通过分步图解，指导用户如何上传文件、设置密码并验证加密效果，确保文档安全不外泄。
要想确认麒麟OS中Python程序的运行状态以及资源占用情况，我们可以这样做：用ps -ef | grep python来筛选进程；通过top命令，按P键排序查看实时负载；使用pgrep -f "script.py"精准获取PID；借助lsof -p PID验证文件打开状态。另外，还可以结合syst
在Debian系统上配置SSL证书通常涉及以下几个步骤：安装Web服务器：首先，你需要一个Web服务器，比如Apache或Nginx。这里以Apache为例。sudo apt updatesudo apt install apache2获取SSL证书：你可以从Let’s Encrypt免费获取SSL
要想让Python项目在统信UOS上正常运行，得先安装python3、python3-pip、python3-venv、python3-dev以及build-essential等组件。具体操作就是执行sudo apt install命令来一步到位完成安装，同时别忘了配置清华镜像源来给pip加速哦。在
在互联网上的各类网站中，无论大小，基本上都会有一个搜索框，用来给用户对内容进行搜索，小到站点搜索，大到搜索引擎搜索。从简单的来说，搜索功能确实很简单，一个简单的select语句就可以实现数据的搜索。而从复杂的来看，无论是搜索的精度还是搜索的效率，都是有很深的研究范围的。对于简单的搜索功能来说，一个s
立即在终端输入sudo shutdown -c取消倒计时关机，成功后显示“Shutdown cancelled”；若存在pmset重复任务，需再执行sudo pmset repeat cancel清除。Mac因Python脚本执行了os.system("sudo shutdown -h +10")或
Windows 10 是一款微软推出的经典操作系统，拥有硬件兼容性与多任务处理能力。它更偏向把系统状态查看和常用调节动作放在一起，适合需要持续观察和微调设备状态的场景。
极度公式是一款跨平台专业LaTeX公式识别编辑软件，支持OCR公式识别和多平台编辑。和使用说明，避免使用，享受完整功能与稳定支持。做扫描整理、文字提取和表格转换时，它能把识别后的处理步骤接得更顺，资料录入这类场景会省下不少时间。
