Free Online PDF Compression Tools

Compress Your PDFs With Ease.

Reduce PDF file size for email, web uploads, sharing, storage and printing with simple online PDF compression tools from PDFToolkits.

✓ Free to use
⚡ Fast & simple
📉 Reduce PDF size
PDFToolkits Compression Collection

PDF Compression Tools for Every Need

Choose the compression workflow that best matches how you want to reduce, optimize and prepare your PDF files.

PDF File → Smaller File → Easy Sharing
COMPRESS
TOOL 01

Compress PDF

Reduce the file size of a PDF while keeping the document convenient for sharing, storage and everyday use.

Compress PDF→
REDUCE
TOOL 02

Reduce PDF File Size

Make large PDF documents smaller and easier to upload, transfer and store.

Reduce File Size→
EMAIL
TOOL 03

Compress PDF for Email

Prepare oversized PDF documents for easier email attachment and sharing.

Compress for Email→
OPTIMIZE
TOOL 04

Optimize PDF

Optimize PDF documents to help reduce unnecessary file data and improve storage efficiency.

Optimize PDF→
SCAN
TOOL 05

Compress Scanned PDF

Reduce the size of scanned PDF documents that contain photographs, scans or image-based pages.

Compress Scanned PDF→
IMAGE
TOOL 06

Compress Image-Heavy PDF

Reduce the size of PDFs containing many images while balancing document quality and file size.

Compress Image PDF→
WEB
TOOL 07

Compress PDF for Web

Prepare PDF documents for websites, online forms and web uploads by reducing unnecessary file size.

Compress for Web→
PRINT
TOOL 08

Compress PDF for Printing

Prepare PDF files for printing and sharing while considering document readability and practical file size.

Compress for Printing→
MAX
TOOL 09

Maximum PDF Compression

Aim for a smaller PDF file when file-size reduction is more important than preserving maximum visual quality.

Maximum Compression→
SIZE
TOOL 10

PDF Size Reducer

Reduce PDF file size with a simple workflow designed for documents that need to fit specific upload or sharing limits.

PDF Size Reducer→
Simple Compression Workflow

Compress Your PDF in 3 Simple Steps

Select your compression tool, add your PDF and download the resulting file.

1

Choose a Compression Tool

Select the compression workflow that best matches your PDF and intended use.

2

Upload Your PDF

Add the PDF document you want to compress and follow the available tool options.

3

Compress & Download

Process your document and download the compressed PDF when the operation is complete.

Frequently Asked Questions

PDF Compression FAQ

Common questions about reducing PDF file size and compressing PDF documents.

What does PDF compression do?

PDF compression reduces the amount of data stored in a PDF so that the resulting file can be smaller and easier to share, upload or store.

Why should I compress a PDF?

Compressing a PDF can make it easier to send by email, upload to websites, store on a device or share with other people.

Can I compress a large PDF online?

Yes. PDFToolkits provides online PDF compression tools designed to help reduce the size of supported PDF documents.

Will PDF compression reduce quality?

The effect on quality depends on how the PDF is optimized and what types of content it contains. Image-heavy PDFs can have a greater size reduction when image data is optimized.

Can I compress a PDF for email?

Yes. A compressed PDF can be more convenient when you need to meet an email attachment size limit or make a document easier to send.

Can scanned PDFs be compressed?

Scanned PDFs can often benefit from compression because they commonly contain image-based pages. The achievable reduction depends on the original document.

Is PDF compression the same as converting a PDF?

No. Compression focuses on reducing or optimizing file size while keeping the document in PDF format. Conversion changes the PDF or another file into a different file format.

Need to Reduce Your PDF Size?

Choose a PDF compression workflow and prepare your document for sharing, uploading, storage or everyday use.

Compress a PDF →
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