Lock PDF on Mobile
01. Upload a document from your computer or cloud storage.
02. Add text, images, drawings, shapes, and more.
03. Sign your document online in a few clicks.
04. Send, export, fax, download, or print out your document.
Discover how to easily lock PDF on mobile and make the most of your documents
Create secure and intuitive eSignature workflows on any device, track the status of documents right in your account, build online fillable forms – all within a single solution.

How to Lock PDF on Mobile
Are you feeling hard-pressed to locate a trustworthy service for all your document management needs, including the option to Lock PDF on Mobile? airSlate SignNow is here to make your file editing and completion experience as smooth as possible, no matter the difficulty. Our platform offers a versatile choice of business-ready document editing, endorsing and collaboration and organization options you’ll find intuitive enough to accommodate first-timers and pro users.
- Head to the airSlate SignNow homepage.
- Create or log in to your existing account.
- Use one of the methods to add your file.
- Open your document in the editor.
- Explore the left and top toolbar and locate the option to Lock PDF on Mobile.
- Utilize other features to improve or manage your document.
- Save the changes and download the file.
No matter the feature you apply or the action you carry out, airSlate SignNow always makes sure that your work is protected and breezy. Sign up for airSlate SignNow now and get a holistic solution that is suitable for any workflow!
How it works
Open your document in our editor.
Edit, modify, sign, and send your document out for completion.
Save and store your file securely.
eSignatures and beyond — simplify document workflows with advanced airSlate SignNow features
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Best ROI. Our customers achieve an average 7x ROI within the first six months.
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Scales with your use cases. From SMBs to mid-market, airSlate SignNow delivers results for businesses of all sizes.
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Intuitive UI and API. Sign and send documents from your apps in minutes.
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FAQs
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How to create a password protected file?
Protect a document with a password Go to File > Info > Protect Document > Encrypt with Password. Type a password, press OK, type it again and press OK to confirm it. Save the file to make sure the password takes effect. -
How do I put a password on a folder?
Please try the steps below: Right-click on the folder you want to keep safe, and a menu will pop up. ... Inside the Properties window, look for the "Advanced" option and click on it. You'll see a checkbox labeled "Encrypt contents to secure data." Tick that box, and then hit the "OK" button. -
Can I password protect a file on my iPhone?
You can assign a password to a document so that only those who know the password can open the document. Passwords can consist of almost any combination of numerals, capital or lowercase letters, and special keyboard characters. A document can have only one password. -
How to create a locked PDF?
Method 1: Use Adobe Acrobat Pro DC to Add Password Protection Open the PDF in Adobe Acrobat Reader. Click on “File” and select “Protect Using Password.” Choose whether you want to restrict editing and printing or just restrict opening the document. Enter a password, and confirm it. Save the document.
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Can you put a lock on a PDF?
How to add passwords and permissions to PDF files: Open a file in Acrobat and choose “Tools” > “Protect.” Select whether you want to restrict editing with a password or encrypt the file with a certificate or password. Set password or security method as desired. -
Can you lock a PDF on an iPhone?
You don't need any special apps or software to encrypt a PDF — you just need to add password protection, and you can do it quickly using an iPhone. -
How to password protect files on phone?
Protect your files with Safe folder On your Android device, open the Files by Google app . Scroll to "Collections." Tap Safe folder. Tap either PIN or Pattern. If PIN is selected: Enter your PIN. Tap Next. In the "Confirm PIN" screen, re-enter your PIN. Tap Next. In the "Remember your PIN" screen, tap Got it. -
How do I make a PDF lockable?
Method 1: Use Adobe Acrobat Pro DC to Add Password Protection Open the PDF in Adobe Acrobat Reader. Click on “File” and select “Protect Using Password.” Choose whether you want to restrict editing and printing or just restrict opening the document. Enter a password, and confirm it. Save the document.
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