PDF Tools

Browser-only PDF rebuilder

Compress PDF

Free to use | No account required | Browser-based where possible

Compress PDF to smaller sizes for email attachments, job applications, forms, and other uploads that reject large files.

Compress PDF online for upload, email, and form limits

Reduce PDF size online when a scanned file is too large for email, job applications, school portals, and document uploads.

This page is built for the practical need users actually have: make the file small enough to send without rebuilding the document from scratch.

Clear workflow Upload, process, download

Built for real tasks Forms, applications, and file sharing

File handling explained See the privacy note below this workspace

Compress PDF free online tool illustration

Why people use this tool

Compress PDF keeps the job focused.

No account wall
Short path from upload to result
Clear download step

Upload PDF

How it works

Upload your file, run the tool, and download the result.

This page is built for a short, practical workflow. Add the file, adjust any settings if you need to, and export the result when it is ready.

Privacy Note

Browser-First Privacy

This tool is designed to run in your browser whenever possible. That means your file or text stays on your device during processing, and it is not uploaded, stored, reviewed, or reused on our servers.

No account, saved history, or hidden content reuse is required for the normal browser-side workflow.

JavaScript required

Compress PDF needs JavaScript to run fully.

The page copy, FAQs, and help text are still available here. To process files or use the interactive workspace, turn on JavaScript in your browser.

Step 1 Add your file

Step 2 Choose settings if needed

Step 3 Download the finished file

Select PDF file Drop your PDF here or click to upload Quality: 70%

About This Tool

Compress PDF

Compress PDF is for the common situation where a file is ready to send but too large for the portal, email, or form that needs it. If the document first needs cleanup or page changes, the closest companion tools are Edit PDF and Fill PDF before you compress the final version.

People often use it when they need to compress PDF to 100KB, make a file small enough for email, or reduce a document for a job application upload. When the next task is combining supporting files or splitting out extra pages, the strongest follow-ups are Merge PDF and Split PDF.

It works best on scanned PDFs, phone scans, and other image-heavy files. Those files usually have more room to shrink than a simple text PDF. If the document needs to become editable after compression, continue to PDF to Word, and if the bottleneck is image size before PDF creation, use Compress Images first.

Use Cases

Common ways to use Compress PDF

Reduce image-heavy PDF size for upload portals
Try to compress a PDF toward 100KB
Create a lighter PDF copy for sharing by email

Privacy-focused

Built around browser-first workflows to reduce unnecessary file exposure and friction.

Easy to use

Upload, process, and download in a direct flow that works well for non-technical users.

Clear guidance

Each tool page explains what it does, when to use it, and what kind of result to expect.

How It Works

How to use Compress PDF online

Upload the PDF you need to make smaller.
Choose the compression level that best matches your file-size goal.
Run the compression and wait for the rebuilt PDF.
Download the lighter file for sharing or upload.

Why this tool helps

Works entirely in the browser without server-side file processing.
Lets users lower page image quality for image-heavy PDFs when trying to compress PDF to 100KB.
Useful as a fallback when a quick browser-only rebuild is acceptable for strict upload limits.

Example Result

Example results for Compress PDF

8.2MB scan Original PDF

1.1MB Compressed PDF

Email and portal upload Typical use

How to compress a PDF without losing readability

Text-heavy PDFs often shrink only a little, while scanned or image-heavy files usually compress much more.

The best result is not the smallest possible file.

It is the smallest file that still looks normal for the upload, review, or email task you need to finish.

When to merge or split before compression

If the final document still needs cleanup, use Merge PDF or Split PDF first. Compression works best once the document structure is already final.

Trust And Privacy

Why Compress PDF is safe to use

Built for short PDF workflows where the main goal is getting the file small enough to use.
No account wall before you try the compression step.
The page explains clearly how the workflow handles PDF processing and what to expect from the result.

Frequently Asked Questions