Unlock PDF and Compress PDF in Windows easily

How to Unlock PDF and Compress PDF in Windows with DocHub

In today's fast-paced digital landscape, managing documents efficiently is crucial. Our platform, designed for seamless document editing, signing, and distribution, empowers you to unlock and compress PDFs effortlessly. With a deep integration into Google Workspace, you can import, modify, and sign documents directly from your favorite apps, ensuring smooth workflows. Whether you’re using iOS 17, iOS 18, or iOS 19, our editor is accessible online and for free, simplifying your document management needs.

Follow the steps to unlock and compress your PDF

Open the website of our platform and log in to your account.
Upload the PDF file that you want to unlock by dragging it into the designated area or selecting it from your files.
Once the document is uploaded, navigate to the options that allow you to modify the file. Look for features that enable you to unlock the PDF.
After unlocking, locate the option to compress your PDF. This feature will reduce the file size without compromising quality.
Once the compression is complete, you can download the modified PDF to your computer, print it, or share it directly via email.

Start streamlining your document management today with our 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.

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

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.

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.

How do I unlock a locked PDF in Windows?

How to unlock a PDF to remove password security: Open the PDF in Acrobat. Use the Unlock tool: Choose Tools Protect Encrypt Remove Security.

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.

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.

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 remove PDF lock?

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 to make a PDF non-editable?

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

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

Unlock PDF and Compress PDF in Windows in no time

How to Unlock PDF and Compress PDF in Windows with DocHub

Follow the steps to unlock and compress your PDF

PDF editing simplified with DocHub

Drive efficiency with the DocHub add-on for Google Workspace