Lock a PDF on Mac - use DocHub for enhanced security

Aug 6th, 2022
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01. Upload a document from your computer or cloud storage.
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02. Add text, images, drawings, shapes, and more.
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03. Sign your document online in a few clicks.
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04. Send, export, fax, download, or print out your document.

Learn how to Lock a PDF on Mac online in a few simple steps

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Password-protecting a document is the best way to secure its content and make sure it won’t be submitted to the wrong hands. Depending on your gadget, a lot of apps can help you add an extra layer of protection to documents on which you keep sensitive data. However, the most proven and straightforward way of doing it is using DocHub.

Here’s a quick tutorial on how to Lock a PDF on Mac without too much headache:

  1. Head to the upload page and select how you want to upload a file.
  2. Once added, the app will redirect you to DocHub’s editor.
  3. Use our editor’s top toolbar to modify, annotate and improve and certify your file.
  4. Click on the download button in the upper-right corner.
  5. Tick the option Password Protect and hit Download or Export to Drive, depending on your preferred saving option.
  6. Come up with a strong password and download or save the file.

Use our feature to Lock a PDF on Mac as many times as you want. Get more flexibility and security, and control over your crucial documents with DocHub. Try it now!

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Instantly share, email, and fax documents in a secure and compliant way. Set a password, place your documents in encrypted folders, and enable recipient authentication to control who accesses your documents. When completed, keep your documents secure in the cloud.

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How to Lock a PDF on Mac

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Today's tutorial will teach you how to lock a PDF file on your Macintosh to prevent unauthorized access. This is important for files containing sensitive information like banking details or salary reports. You can easily password protect your PDF files using the Preview application on your Mac. Just open the file in Preview and look for the option to add a password. This ensures that only those with the correct password can view the file.

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Got questions?

Below are some common questions from our customers that may provide you with the answer you're looking for. If you can't find an answer to your question, please don't hesitate to reach out to us.
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Open the PDF and choose Tools Protection Encrypt Encrypt with Password 6. If you receive a prompt, click Yes to change the security. 7. Select Require A Password To Open The Document, then type the password in the corresponding field.
To prevent users from editing your form fields in a fillable PDF, you must flatten or lock the form before saving. Open a fillable form and add the necessary data.
You can set files to read-only mode through your operating systems basic tools. On Windows, just right-click your PDF and select Properties Read-only OK.
Lock PDFs and images in Preview on Mac In the Preview app on your Mac, open a PDF or image. Move the pointer next to the documents name in the title bar, click the arrow that appears, then select or deselect the Locked checkbox.
Lock PDFs and images in Preview on Mac In the Preview app on your Mac, open a PDF or image. Move the pointer next to the documents name in the title bar, click the arrow that appears, then select or deselect the Locked tickbox.
Use integrated read-only settings. On a Mac computer, the process is a little more complex. Select the PDF and click File Get Info. You can then set access rights under the Sharing Permissions tab. This is an easy method to protect your PDFs but it can also be unreliable.
Lock a document on Mac Lock a closed document: Select it, choose File Get Info, click the arrow next to General, then select Locked. Lock an open document: Hold the pointer to the right of the document title, click the down arrow , then select Locked.

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