PDFLOCK

HowtoPasswordProtectDigitallySignedPDFDocuments.1.OpenthePDFandchooseFile>Print>AdobePDF>Print.2.Typethefilename,andclickSave.,PasswordprotectPDFfileswiththisfreeandsecurepasswordtool.EncryptaPDFwithapasswordtoensurethatsensitivecontentiskeptprivate.,2024年7月1日—PDFLockStudioisasimpletooltolockaspecificpageormultiplepagesofPDFfileswithapassword.Whichthenyoucantosaveittoa ...,免費網上...

How to Password Protect PDF Documents

How to Password Protect Digitally Signed PDF Documents. 1. Open the PDF and choose File > Print > Adobe PDF > Print. 2. Type the file name, and click Save.

How to protect a PDF file with a password

Password protect PDF files with this free and secure password tool. Encrypt a PDF with a password to ensure that sensitive content is kept private.

PDF Lock Studio PRO

2024年7月1日 — PDF Lock Studio is a simple tool to lock a specific page or multiple pages of PDF files with a password. Which then you can to save it to a ...

PDF加密

免費網上PDF加密服務- 以AES 128-bit高階加密標準為你的PDF檔案加密。無檔案大小限制，無廣告水印，而且安全易用。

Protect PDF - Protect your PDF documents online

Protect your PDF files online by adding a password that will prevent people from being able to copy or print your PDF document. Secure PDF files for free.

Protect PDF

Free online tool to password protect PDF files and to set PDF security settings. No quality loss. Without installation. Without registration.

Protect PDF. Tool to encrypt PDF with password

Encrypt and protect PDF with a password to safeguard sensitive information. Secure your PDF files online, with ease and without registration.

Unlock PDF files. Remove PDF password

Unlock PDF. Remove PDF password security, giving you the freedom to use your PDFs as you want. Upload your file and transform it. Select PDF files.

使用密碼保護文件、Adobe Acrobat

2024年3月11日 — 前往「全部工具 > 保護PDF」。從左側窗格中的「保護PDF」工具組，選取「使用密碼加密」。選取「檔案 > 使用密碼保護」。在「進階選項」清單中，選取「 ...

在線上免費以密碼保護PDF

按一下上方的「選取檔案」按鈕，或將PDF 拖放至放置區。 · 輸入密碼，然後再次輸入以確認密碼。 · 按一下「設定密碼」。 · 下載受密碼保護的PDF 文件，或登入以共用文件。