Lock and Compress PDF online

Learn how to Lock and Compress PDF for free

PDF documents are the go-to choice for many individuals and organizations thanks to their locked formatting, organized layout, and bolstered security. They also take up less storage space and are set up for creating streamlined workflows that make collaboration between multiple users easier. Nevertheless, in terms of utilizing advanced tools for paperwork, users regularly end up wasting hours deciding which solutions they need. Luckily, there’s DocHub to help you handle your document needs.

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

Visit our solution > Sign in or set up a new account.
Go to Settings > Create an organization, add branding, manage privacy configurations, etc.
Return to your Dashboard and hit New Document > Pick the feature to upload your PDF document.
An intuitive toolbar that is loaded with tools will appear with the ability to Lock and Compress PDF > use it on your document.
Discover and benefit from other features to improve your document and make it optimized.
Once you’ve made the modifications 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 solution.

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

Why not start your free trial today and uncover 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.

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 and Compress PDF

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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 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.

How do I compress a PDF by 50%?

How to Compress a PDF to a Chosen Size Go to the Compress PDF online tool. Drag and drop your PDF into the tool. Choose either Basic compression or Strong compression. Click Compress, and youre done. Download your PDF.

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.

How do I compress a PDF to 1000 KB?

Open the file in a PDF editor like docHub. Open the Tools center and click Optimize PDF Tool. Choose a file to compress. Select Reduce File Size in the top menu.

How do I reduce the size of a locked PDF?

#1 Compress Your PDF File with docHub This is the quickest fix for reducing the size of your 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.

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.

Why cant I compress an encrypted PDF?

Its possible to compress an encrypted or locked PDF even if you dont know the password, however compressing a PDF will not bypass security settings, such as passwords. So youd still need to unlock the PDF normally before being able to open or edit it. Right-click the PDF you want to compress.

Is it possible to unlock a locked 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.

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 and Compress PDF effortlessly

Learn how to Lock and Compress PDF for free

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

PDF editing simplified with DocHub

Drive efficiency with the DocHub add-on for Google Workspace

How to Lock and Compress PDF