Lock PDF and Add Page Numbers to PDF on Mobile
Discover how to easily lock PDF and add page numbers to 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 Lock PDF and Add Page Numbers to PDF on Mobile
Are you struggling to find a reliable solution for all your paperwork editing and signing needs, including the ability to Lock PDF and Add Page Numbers to PDF on Mobile? airSlate SignNow is designed to make your file editing and completion experience as smooth as possible, no matter the difficulty. Our solution offers a versatile selection of business-ready paperwork editing, signing and collaboration and organization tools you’ll find intuitive enough to be equally suitable for first-timers and pro users.
- Visit the airSlate SignNow main page.
- Set up or log in to your existing account.
- Choose one of the options to add your file.
- Open your document in our editor.
- Explore the left and top toolbar and find the ability to Lock PDF and Add Page Numbers to PDF on Mobile.
- Apply other tools to improve or organize your paperwork.
- Save the changes and download the document.
No matter what feature you apply or the action you perform, airSlate SignNow always makes certain that your work is protected and stress-free. Register for airSlate SignNow today and get an integrated solution that is suitable for any workflow!
How it works
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 do I keep page numbers in a PDF?
How To Add & Insert Page Numbers to PDF: Import or drag & drop your file to our PDF page number tool. Select the position where you want page numbers to appear. Adjust page margins and other options as needed. Click “Number pages” and wait just a second. Download your PDF with page numbers—that's it! -
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. -
Is there a way to automatically add page numbers to PDF?
Type the text in any of the header and footer text boxes. To insert page numbers or the current date, click in a box and then select the corresponding buttons. To select formatting for automatic entries, select Page Number and Date Format. -
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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How do you add page numbers to a PDF app?
How to Add Page Numbers to PDFs on Mobile Phone on Android First, the iScanner app on your phone or tablet: Android. ... Open the PDF in question in iScanner. ... Tap Text at the bottom of the screen. Within the text menu, tap Numbering. Choose one of the three available formats: 1, page 1, page 1 of X. -
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 can I lock PDF file?
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 put a password on a PDF?
Open the PDF document you would like to password protect, select the Tools tab, scroll down to find the Protect & Standardize section, select Protect. 2. The Protect tool bar will appear, select the Encrypt button drop menu. Here you can either Encrypt with a Certificate or Encrypt with a Password.