When should I use it?
Use PDF Compress when you need a private, upload-free browser tool for this task.
Online PDF Utility
PDF Compress
Shrink PDFs locally with image downsampling and metadata cleanup. Moderate browser-level compression — no server.
100% Browser-Based Processing — Your files never leave your device. No uploads, no server processing, complete privacy.
✓ Browser Processing
✓ No Upload
✓ Privacy First
✓ Free Forever
✓ Works Offline
Choose PDF files
Drag & drop here, browse, or paste with Ctrl+V
File Details
Filename—
File Size—
Pages—
PDF Version—
Encrypted?—
Author—
Created—
Modified—
Large PDF detected. Processing may use more browser memory — keep other tabs light.
Preview
Tool Options
Load a PDF to see expected size savings.
Working…
FreeConverter.app Guide
What does PDF Compress do?
Reduce PDF size in-browser with downsampling and metadata cleanup.
Who is it for?
Developers, marketers, students, and anyone who needs a free browser utility.
Example input
Paste text, markup, or choose a local file (processed only in this browser tab).
Example output
Instant on-device result you can copy or download — nothing leaves your device.
Browser processing100% in-browser
PrivacyLocal Processing
UploadNot required
DifficultyEasy
How It Works
Private, local PDF processing in three steps.
1
Choose file
Drag & drop, browse, or paste a file. Nothing is uploaded.
→
2
Process in browser
All work runs locally with PDF.js / pdf-lib.
→
3
Download result
Save the output instantly to your device.
Zero server upload — every step runs inside your browser.
About PDF Compress
Compress PDF files in your browser by downsampling pages and removing metadata. Moderate savings, zero uploads, complete privacy. Built for privacy-first workflows: open the tool, choose a file, process locally, and download — without creating an account or sending documents to a server.
FAQs
No. Processing is 100% browser-based. Your files never leave your device.
No. Any modern browser is enough.
Yes. FreeConverter.app online PDF tools are free to use.
No. FreeConverter.app processes this tool locally in your browser. Your input is not uploaded to our servers.
No. PDF Compress on FreeConverter.app is free to use without creating an account.
Developers, marketers, students, and anyone who needs a free browser utility.