Lock PDF and merge online

Learn how to Lock PDF and merge for free

PDF documents are the go-to option for many individuals and organizations thanks to their secure formatting, organized layout, and bolstered security and safety. They also take up less storage space and are set up for building efficient workflows that make collaboration between numerous users simpler. Nevertheless, in terms of utilizing advanced tools for paperwork, users regularly end up wasting hours deciding which tools they need. Luckily, there’s DocHub to help you tackle your file needs.

Your step-by-step guide to Lock PDF and merge

Go to our platform > Log in or set up a new account.
Go to Settings > Set up an organization, add branding, manage privacy configurations, etc.
Go back to your Dashboard and hit New Document > Select the option to add your PDF file.
An intuitive toolbar that is loaded with tools will show up with the ability to Lock PDF and merge > use it on your document.
Check out and benefit from other tools to improve your file and make it submission-ready.
As soon as you’ve created the changes you need, click to save them.
After the process finishes, you have the ability to download your edited PDF or share it straight from our platform.

Discover the freedom of learning PDF editing tools with our editor. Whether you want to Lock PDF and merge or explore other capabilities, the choice is at your disposal.

Why not start your free trial today and uncover the complete power of our PDF editing platform?

PDF editing simplified with DocHub

Seamless PDF editing

Editing a PDF is as simple as working in a Word document. You can add text, drawings, highlights, and redact or annotate your document without affecting its quality. No rasterized text or removed fields. Use an online PDF editor to get your perfect document in minutes.

Smooth teamwork

Collaborate on documents with your team using a desktop or mobile device. Let others view, edit, comment on, and sign your documents online. You can also make your form public and share its URL anywhere.

Automatic saving

Every change you make in a document is automatically saved to the cloud and synchronized across all devices in real-time. No need to send new versions of a document or worry about losing information.

Google integrations

DocHub integrates with Google Workspace so you can import, edit, and sign your documents directly from your Gmail, Google Drive, and Dropbox. When finished, export documents to Google Drive or import your Google Address Book and share the document with your contacts.

Powerful PDF tools on your mobile device

Keep your work flowing even when you're away from your computer. DocHub works on mobile just as easily as it does on desktop. Edit, annotate, and sign documents from the convenience of your smartphone or tablet. No need to install the app.

Secure document sharing and storage

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.

Drive efficiency with the DocHub add-on for Google Workspace

Access documents and edit, sign, and share them straight from your favorite Google Apps.

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How to Lock PDF and merge

5 out of 5

10 votes

This video tutorial demonstrates how to use Mail MergeToolkit to mailmerge password protected PDF and Microsoft Word documents to send personalized attachments in multiple formats. The toolkit allows for protection of sensitive data by applying passwords and permissions to prevent unauthorized access, copying, editing, and printing. With an example scenario of notifying employees about personal information updates, unique passwords are applied to each document in the mail merge process. The tutorial showcases a template in Word and an Excel spreadsheet containing employee information, including additional columns for detailed data.

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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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How do I remove password protection?

Remove a password from a document Open the document and enter its password. Go to File Info Protect Document Encrypt with Password. Clear the password in the Password box, and then click OK.

How do I merge secure PDF files?

Follow these easy steps to combine PDF documents into one file: Click the Select a file button above, or drag and drop files into the drop zone. Select the files you want to merge using the Acrobat PDF combiner tool. Reorder the files if needed. Click Merge files. Download the merged PDF.

How do I lock and unlock a PDF?

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 do I convert a locked PDF to editable?

Open the PDF in Acrobat. Select Tools Protect Encrypt Remove Security. Your options vary depending on the type of password security attached to the document: If the document has a Document Open password, click OK to remove it from the document.

Can you unlock PDF with password?

Files with an owner password can be unlocked instantly. However, if the file is strongly encrypted, you can only unlock the file by providing the correct password. Just upload your file and the password will be removed from your PDF. You can receive the unlocked PDF by simply clicking download and you are good to go!

How do I lock a PDF for editing?

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. Click OK and then click Save.

How do I password protect a PDF and mail merge?

Restrict editing of a PDF Open the PDF in Acrobat, and do one of the following: Choose File Protect Using Password. Choose Tools Protect Protect Using Password.

See why our customers choose DocHub

Great solution for PDF docs with very little pre-knowledge required.

"Simplicity, familiarity with the menu and user-friendly. It's easy to navigate, make changes and edit whatever you may need. Because it's used alongside Google, the document is always saved, so you don't have to worry about it."

Pam Driscoll F
Teacher

A Valuable Document Signer for Small Businesses.

"I love that DocHub is incredibly affordable and customizable. It truly does everything I need it to do, without a large price tag like some of its more well known competitors. I am able to send secure documents directly to me clients emails and via in real time when they are viewing and making alterations to a document."

Jiovany A
Small-Business

I can create refillable copies for the templates that I select and then I can publish those.

"I like to work and organize my work in the appropriate way to meet and even exceed the demands that are made daily in the office, so I enjoy working with PDF files, I think they are more professional and versatile, they allow..."

Victoria G
Small-Business

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Use DocHub to Lock PDF and merge effortlessly

Learn how to Lock PDF and merge for free

Your step-by-step guide to Lock PDF and merge

PDF editing simplified with DocHub

Drive efficiency with the DocHub add-on for Google Workspace

How to Lock PDF and merge