Lock PDF and Compress PDF in Windows easily

How to Lock PDF and Compress PDF in Windows with DocHub

DocHub is a powerful online platform designed to streamline document editing, signing, distribution, and forms completion. With deep integration into Google Workspace, users can effortlessly import, export, modify, and sign documents directly from their favorite Google apps. This guide will empower you to efficiently lock and compress your PDFs in Windows using our editor, ensuring your documents are both secure and optimized for easy sharing.

Follow the steps to Lock PDF and Compress PDF in Windows

Open the DocHub website and log in to your account.
Upload the PDF document you wish to lock and compress by selecting it from your files.
Navigate to the security settings within the editor and apply a password to lock your PDF, ensuring only authorized users can access it.
Once locked, proceed to the compression feature available in the editor to reduce the file size, making it easier to share online.
After compression, review your document to ensure it meets your standards and save any changes.
Finally, download the secured and compressed PDF to your device, or share it directly from the platform via email or link.

Get started with DocHub today to simplify your document management tasks—lock and compress your PDFs for free!

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.

Install now

Got questions?

Here 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.

Contact us

Can you compress a PDF on Windows?

If youre working in Windows and you need to reduce the size of a PDF to send it, you can do so quickly with the docHub online PDF compressor. Or, if youre offline, you can reduce the file size in docHub Pro.

How do I compress a locked PDF?

Open a PDF in Acrobat. Open the Optimize PDF tool from the pane on the right. Click Advanced Optimization in the toolbar at the top and specify your compression needs, then click OK. Select a location to save your file and click Save.

How do I lock a PDF in Windows?

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.

How do I lock and flatten a PDF?

With Acrobat Pro, follow the steps below to flatten your PDF: Make a copy of your PDF. Choose Advanced Print Production Flattener Preview. Adjust the Raster/Vector balance. Select Convert All Text To Outlines. Deselect Clip Complex Regions. Click Apply to flatten the PDF. Close the Flattener Preview dialog box.

Is there a way to lock a PDF file?

Method 1: Use docHub to Add Password Protection Open the PDF in docHub 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.

Do I need to flatten my PDF?

Flattening a PDF is necessary to reduce a documents size, if a PDF includes a form, or to meet sponsor formatting requirements. PDFs that are not flattened can create errors when users upload documents to a sponsors system.

How to make a PDF non-editable?

Right-click your PDF. Select Properties. Choose Read-only. Click OK.

Does flattening a PDF make it uneditable?

Simply put, PDF flattening is the process of bringing multiple layers of text, PDF images, and other elements together into a single static layer. This means that any interactive elements within your document will now be uneditable, for instance: Form fields.

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

Security and compliance

At DocHub, your data security is our priority. We follow HIPAA, SOC2, GDPR, and other standards, so you can work on your documents with confidence.

Learn more

be ready to get more

Edit and sign PDFfor free

Get started now

Lock PDF and Compress PDF in Windows in no time

How to Lock PDF and Compress PDF in Windows with DocHub

Follow the steps to Lock PDF and Compress PDF in Windows

PDF editing simplified with DocHub

Drive efficiency with the DocHub add-on for Google Workspace