Compress and Lock PDF online

Learn how to Compress and Lock PDF for free

PDF documents are the go-to choice for the most of individuals and companies thanks to their locked formatting, structured layout, and bolstered security and safety. Additionally, they require less storage space and are set up for building streamlined workflows that make collaboration between numerous users easier. Nevertheless, in terms of utilizing advanced tools for documents, users often end up wasting hours deciding which solutions they need. The good thing is that, there’s DocHub to help you handle your file needs.

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

Go to our platform > Log in or register a new account.
Go to Settings > Set up an organization, add branding, handle privacy settings, etc.
Return to your Dashboard and hit New Document > Select the option to upload your PDF document.
An intuitive toolbar that is packed with tools will appear with the ability to Compress and Lock PDF > apply it to your document.
Explore and take advantage of other features to improve your file and make it optimized.
As soon as you’ve created the modifications you need, hit to save them.
After the process completes, you have the option to download your edited PDF or share it directly from our platform.

Unlock the freedom of mastering PDF editing tools with our editor. Whether you want to Compress and Lock PDF or explore other capabilities, the choice is at your fingertips.

Why not start your free trial today and unlock the full 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.

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How to Compress and Lock PDF

5 out of 5

34 votes

This video demonstrates how to protect a PDF file from copying, editing, or printing without the need for DocHub or Adobe Acrobat Pro DC. David explains the importance of limiting permissions in a PDF to prevent unauthorized actions such as copying, editing, or printing. He shows how opening a PDF file in a web browser allows users to perform these actions easily, highlighting the need for additional security measures. The tutorial aims to provide a solution for securing PDF files without advanced tools or software.

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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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What does lock PDF mean in files?

You can lock a PDF or image so that it cant be edited or deleted. If you own a locked document, you can edit the document after unlocking it. Others can change the documents contents only by creating a duplicate of the document and editing the duplicate. Open Preview for me.

Can you make a fillable PDF non editable?

To prevent users from editing your form fields in a fillable PDF, you must flatten or lock the form before saving.

How do I make a PDF non editable in Word?

Heres how to do it: Begin by using Power PDF to open the document. Using the ribbon bar, select the Security tab and then select Manage Security. Look for an option called Set a password to restrict editing of security settings. Select this setting and then type a strong password.

How do I make a PDF non editable?

You can set files to read-only mode through your operating systems basic tools. On Windows, just right-click your PDF and select Properties Read-only OK.

How do I compress a locked PDF?

Heres what you need to do: Go to the Tools tab select Optimize PDF click Open to access the PDF file you want to compress select Reduce File Size click OK. Alternatively, you can use docHub Online PDF Compressor.

How do I lock and flatten a PDF?

How to Flatten PDF with docHub Open docHub. Press File. Press Open. Click Print Production. In the Flattener Preview dialog box, select settings youd like to apply. Specify the pages you want to flatten. Click Apply Yes. Save your 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."

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..."

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Small-Business

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Use DocHub to Compress and Lock PDF effortlessly

Learn how to Compress and Lock PDF for free

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

PDF editing simplified with DocHub

Drive efficiency with the DocHub add-on for Google Workspace

How to Compress and Lock PDF