Compression stays local
Your PDF is processed inside the extension rather than uploaded to a compression service.
Private PDF compression
Make PDFs smaller.
Keep your documents private.
Compress one PDF or an entire batch directly in your browser. Choose a quality level yourself, or let the extension select one for you.
- Local processing
- Up to 200 MB each
- Batch compression
Simple by design
The controls you need. Nothing you do not.
Add files, choose how much to compress, and download the results. The workflow stays focused from start to finish.
One file or a full batch
Queue multiple PDFs, follow each result, then download files individually or all at once.
Automatic or manual control
Let the document analysis recommend a level, or select the balance between clarity and size yourself.
A clear workflow
From a large PDF to a smaller download
No account or configuration maze. The extension keeps the process visible and predictable.
- 1
Add your PDFs
Drag and drop files, choose them from your computer, or use a direct HTTPS URL.
- 2
Choose the balance
Keep automatic selection enabled or pick Smart, Light, Balanced, or Strong.
- 3
Download the results
Save each completed PDF separately or use Download all for the finished batch.
Four compression levels
Choose what matters for each document
Start with automatic selection, then take control whenever a specific PDF needs a different balance.
Smart
Keeps text and links while compressing compatible images.
Light
Recommended when image clarity matters.
Balanced
Recommended for most scanned documents.
Strong
Recommended when the smallest file matters most.
Built around privacy
Your document does not need to leave the page
Compression runs locally in the extension. There is no account, document library, or remote compression queue holding your files.
- No document upload for compression
- No account required
- Temporary batch results stay local
Frequently asked
A few useful answers
Does Make PDF Smaller upload my documents?
No. PDF compression runs locally inside the extension.
How large can each PDF be?
Each selected PDF can be up to 200 MB.
Do I need to choose a compression level?
No. Automatic selection is enabled by default, and you can switch to manual control whenever you prefer.
Can I compress several PDFs together?
Yes. Add multiple files, monitor the queue, and download completed results individually or together.
Ready when you are
See the complete compression workflow
The usage guide walks through opening the extension, adding PDFs, and downloading a completed batch.