PDF Compressor Online

FREE ONLINE PDF TOOL

PDF Compressor Online

Reduce PDF file size easily. Compress PDF documents directly in your browser.

or drag and drop your PDF here

PDF files only • Processed in your browser

Selected PDF

PDF
document.pdf File size: — Pages: —
✓ Your PDF is processed locally in your browser.

Compression Settings

Choose how much you want to reduce the PDF file size.

Compression Result

Original Size —
Compressed Size —
Size Reduction —

Download Compressed PDF

PDF Compressor Online – Reduce PDF File Size for Free

Use My Skill Star’s free PDF Compressor Online to reduce PDF file sizes quickly and easily. Choose a compression level, process your document directly in your browser, and download the resulting PDF.

Our online PDF compressor is useful for school assignments, online applications, email attachments and document sharing. No software installation is required.

How to Compress a PDF Online

  1. Click Select PDF File and choose your PDF document.
  2. Check the filename, original file size and page count.
  3. Select Low, Medium or High Compression.
  4. Click Compress PDF and wait for processing.
  5. Compare the original and processed file sizes.
  6. Click Download Compressed PDF to save your file.

Features of Our Free PDF Compressor

  • Free to use: Compress PDFs without paying.
  • Three compression levels: Low, Medium and High.
  • File size comparison: See the original and processed sizes.
  • Page counting: Check how many pages your PDF contains.
  • Private processing: Documents are processed in your browser.
  • Easy download: Save your processed PDF to your device.
  • Mobile friendly: Works on modern desktop and mobile browsers.

Why Compress PDF Files?

Large PDF documents can take longer to upload, download and share. Reducing PDF file size can make it easier to attach documents to emails, submit online forms and manage storage space.

Compression results depend on the original document and selected settings. Some PDFs are already optimized and may not become smaller.

Frequently Asked Questions

Is the PDF Compressor free?

Yes. My Skill Star provides this PDF compression tool for free.

Are my PDF files uploaded to a server?

No. PDF processing takes place directly in your browser, without uploading the document to our server.

What is the difference between Low, Medium and High Compression?

Low Compression maintains higher image quality. Medium Compression balances quality and file size. High Compression uses lower image quality to try to create a smaller PDF.

Will compression reduce PDF quality?

Yes, it may reduce visual quality. Lower compression settings generally preserve more image detail.

Will my PDF keep selectable text and hyperlinks?

No. This tool converts PDF pages into compressed images. Selectable text, hyperlinks and interactive form fields are not preserved.

Why is my compressed PDF not smaller?

Some PDFs are already optimized. Reprocessing them may produce a file of similar or greater size.

Can I compress PDF files on my phone?

Yes. The tool is designed for modern mobile browsers. Large PDF files may require additional processing time and memory.