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Learn how to Merge and Lock PDF for free

PDF documents are the go-to choice 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 created for building streamlined workflows that make collaboration between multiple users easier. Nevertheless, in terms of using advanced features for paperwork, users often end up wasting hours considering tools they need. Fortunately, there’s DocHub to help you tackle your document needs.

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

Go to our platform > Sign in or set up a new account.
Navigate 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 easy-to-use toolbar that is packed with features will appear with the ability to Merge and Lock PDF > use it on your document.
Discover and take advantage of other features to enhance your document and make it optimized.
As soon as you’ve made the changes you need, hit to save them.
After the process finishes, you have the option to download your edited PDF or share it directly from our platform.

Experience the freedom of learning PDF editing features with our editor. Whether you want to Merge and Lock PDF or experiment with other capabilities, the choice is at your fingertips.

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

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.

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How to Merge and Lock PDF

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73 votes

This video tutorial demonstrates how to use the Mail MergeToolkit to mail merge password protected PDF and Microsoft Word documents. The toolkit enables personalized attachments in various formats, including password protected PDF and DOCX files to safeguard sensitive data. For example, in a scenario where a company needs to notify employees about their personal information, each document can be protected by a unique password to prevent unauthorized access. By using a Word template and an Excel spreadsheet with employee details, personalized and secure documents can be efficiently created and distributed.

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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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Can I combine PDF files with password protected?

An encrypted PDF is password protected, which means you cannot open the document unless you type in the correct password. docHub allows you to merge two or more encrypted PDFs into one document, but you need to know the passwords for each document in order to merge them.

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.

Can I email a PDF with password protect?

You can send PDFs securely using just password protection, but you cant encrypt a document without a password.

Can you password protect a mail merge?

The AutoMailMerge plug-in provides ability to use either the same password for all output documents or assign an individual password for every file. The software can use text from the data source records to create individual passwords for each output PDF document.

How to 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. Click OK and then click Save.

Can you merge locked PDFs?

A: Yes, you can merge password-protected PDF files without a password using WPS Offices Combine PDF feature. You just need to choose the files you want to combine, press the Combine button, and then wait for the operation to be finished.

How do I password protect a PDF in Word?

To add a password to a PDF document, open Word File Export, select Create PDF/XPS Document, and click Create PDF/XPS, click Options, check Encrypt the document with a password, click OK, create a password for the PDF, and click Publish.

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.

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."

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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."

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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..."

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