How do I reduce PDF file size?

Upload your PDF to our free size reducer, choose a compression level (Light, Medium, or High), and download the smaller file instantly. Most PDFs are reduced by 70-95%. All processing happens in your browser - no file uploads to servers.

How much can I reduce PDF size?

Most PDFs can be reduced by 70-95%. Image-heavy documents (scans, photos) see the largest reductions. Text-only PDFs may see smaller reductions since text is already compact.

Is the PDF size reducer free?

Yes, completely free with no limits. No signup required, no daily caps, no watermarks. Reduce as many PDFs as you need, up to 1GB each.

Will reducing PDF size affect quality?

Light and Medium compression preserve excellent quality. Text always stays sharp. Images are optimized intelligently - most users cannot tell the difference. High compression trades some image quality for maximum size reduction.

Can I reduce a large PDF file (100MB+)?

Yes! Our tool handles files up to 1GB using advanced streaming technology. Large files are processed page-by-page to avoid browser memory issues. You can even batch-reduce up to 10 PDFs at once.

Free PDF Size Reducer

Reduce PDF Size Instantly

Shrink PDF files by up to 95% without losing quality. Free, instant, and 100% private — your files never leave your device.

Reduce PDF Size Now

Free • No signup • No file uploads to servers

How Much Can You Reduce PDF Size?

Small PDFs

1-5 MB documents like letters, invoices, and receipts reduced to 100-500 KB.

Email attachments
Form submissions
Resume uploads

Medium PDFs

5-50 MB reports and presentations reduced to 500 KB - 5 MB.

Business reports
Slide decks
Catalogs & brochures

Large PDFs

50 MB - 1 GB files reduced to 5-50 MB. We handle files up to 1GB.

Scanned documents
Photo albums
Architecture plans

Start Reducing PDF Size

How to Reduce PDF File Size

Drop Your PDF File

Open our PDF size reducer and drag your file in. Supports any PDF up to 1GB — even huge scanned documents.

Choose How Much to Reduce

Pick a compression level: Light (minimal reduction, highest quality), Medium (balanced), or High (maximum size reduction). Most users choose Medium for the best balance.

Download Your Smaller PDF

Your reduced PDF is ready instantly. See the exact size reduction (before and after). Most PDFs shrink by 70-95%.

Why Are PDF Files So Large?

Embedded Images

Photos and graphics stored at full resolution make up 80-90% of most PDF file sizes. Our reducer optimizes these images while keeping them readable.

Scanned Documents

Scanning at 600 DPI creates massive files. A 10-page scan can be 50MB+. Our tool reduces these to 2-5MB while keeping text sharp.

Embedded Fonts

PDFs embed entire font files for portability. Multiple fonts can add several MB. Our reducer optimizes font storage.

Redundant Data

PDF creators often store duplicate objects, metadata, and unused resources. Our tool strips these without affecting the visible content.

PDF Smaller vs Other PDF Size Reducers

Feature	PDF Smaller	Others
Price	100% Free	Free trial, then $9-12/mo
File size limit	1 GB	5-100 MB (free tier)
Daily limit	Unlimited	1-2 files/day free
File uploads to server	Never — browser only	Yes — uploaded to cloud
Signup required	No	Yes (for most features)
Batch processing	Up to 10 files	Premium only

Your Files Stay on Your Device

Unlike other PDF size reducers that upload your files to remote servers, PDF Smaller processes everything locally in your browser. Your documents are never transmitted over the internet.

Safe for confidential contracts, financial documents, medical records, and personal files.

Ready to Reduce Your PDF Size?

Free, instant, and private. Reduce any PDF by up to 95% — no signup required.

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