Unlock PDF and 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 unlock PDF and 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.

The best way to Unlock PDF and Lock PDF on Mobile
Are you feeling hard-pressed to locate a trustworthy solution for all your paperwork editing and signing needs, like the option to Unlock PDF and Lock PDF on Mobile? airSlate SignNow is designed to make your file editing and approval experience as easy as possible, no matter the complexity. Our solution provides a versatile choice of business-ready paperwork editing, endorsing and collaboration and organization options you’ll find intuitive enough to be equally suitable for first-timers and pro users.
- Go to the airSlate SignNow main page.
- Set up or log in to your existing account.
- Select one of the options to add your file.
- Open your document in our editor.
- Try out the left and top toolbar and find the option to Unlock PDF and Lock PDF on Mobile.
- Apply other tools to optimize or manage your paperwork.
- Save the modifications and download the document.
No matter what tool you leverage or the action you carry out, airSlate SignNow always makes certain that your work is secure and breezy. Register for airSlate SignNow today and get a holistic solution that fits into 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.
Our user reviews speak for themselves
FAQs
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How do I remove protection from a PDF?
Open the PDF in Acrobat. Use the “Unlock” tool: Choose “Tools” > “Protect” > “Encrypt” > “Remove Security.” -
Can we unlock locked PDF?
Strongly encrypted PDFs can only be unlocked with the correct passwords. Unlocking a PDF is easy with Smallpdf. You just need to upload your PDF, enter the password (for strongly encrypted files), and download the unlocked PDF! -
How do I open a password protected PDF on my phone?
How to open a password-protected PDF file in Android. Open the Adobe Acrobat Reader app. Navigate to the location of the PDF file on your Android device. Tap the PDF file. You will be prompted to enter the password. Type the password for the PDF and press OK. If the password is correct, the PDF file will open.
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How do I unlock a PDF on my phone?
How to open a password-protected PDF file in Android. Open the Adobe Acrobat Reader app. Navigate to the location of the PDF file on your Android device. Tap the PDF file. You will be prompted to enter the password. Type the password for the PDF and press OK. If the password is correct, the PDF file will open. -
How do I remove a lock from a PDF on my phone?
Removing PDF passwords on an Android phone Use the PDF viewer you have on your phone to open your PDF. To access the file, enter the password. Tap the Menu icon in the viewer. Then, tap on 'Share' and locate the Share icon and choose 'Print to PDF' to save the file in that location without a password. -
How do I unlock a locked PDF file?
How to unlock a PDF to remove password security: Open the PDF in Acrobat. Use the “Unlock” tool: Choose “Tools” > “Protect” > “Encrypt” > “Remove Security.” Remove Security: The options vary depending on the type of password security attached to the document. -
How to lock a PDF in mobile?
How to set a password to protect PDFs on Android. Navigate to the password protection page in your preferred browser using your Android device. Click the button labeled “Select a file” to choose and upload your PDF from your Android. Create and enter a strong password, then retype it to confirm.
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