Compress PDF Files
⚡ FREE & SECURE TOOL
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Compress PDF Files

Reduce file size heavily while keeping text crystal clear and fully selectable.

Drag & drop your PDF here

or browse from device

100% Local Processing
Even when importing files from cloud storage, all processing happens directly in your browser. We never upload or store your documents on our servers.

How to Compress PDF Online

1
Upload your PDF by dragging it, clicking the upload area, or importing it from Google Drive or Dropbox.
2
Choose between "Preserve text" or "Maximum compression" to reduce PDF size.
3
If you selected Maximum compression, pick a quality level (Basic, Recommended or Extreme).
4
Click Compress PDF and wait a few seconds while it processes locally.
5
Download your smaller PDF. Done!
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Helpful Tips
  • Everything runs in your browser — your files never leave your device.
  • You can import PDFs directly from Google Drive or Dropbox.
  • "Preserve text" keeps the PDF searchable and selectable.
  • "Maximum compression" converts pages to images for much smaller file size.
  • Recommended level offers the best balance when you want to reduce PDF size without losing too much quality.
  • Already optimized PDFs may show little or no reduction.

🎯 Common Uses

Quick ideas to get the most out of Compress PDF

  • Email attachments — Reduce file size to stay under email limits (usually 25 MB).
  • Job applications — Meet strict file size requirements for resumes and HR portals.
  • Upload to websites — Optimize documents for faster loading on blogs and portals.
  • Save storage space — Free up space on your device, cloud, or server.
  • Faster sharing — Send large documents quickly via WhatsApp or Slack.
  • Mobile viewing — Reduce file size for easier downloading on phones.
  • Client deliverables — Send lightweight, professional files to clients.
  • Batch archiving — Compress multiple documents before long-term storage.
100% Private Local Only

Your files never leave your device. All compression operations run 100% inside your browser.

Smart Modes Flexible

Choose between preserving searchable text or maximum image-based size reduction.

Up to 85% Smaller Optimized

Drastically reduce file size for scanned PDFs and image documents depending on the selected compression method.

Quality Control 3 Levels

Select Basic, Recommended, or Extreme compression presets to fit your exact visual needs.

Instant Results Fast

Compress in seconds and see the new size before you download. No waiting queues.

No Registration Free

No accounts, hidden subscriptions, or file limits. Compress your documents instantly for free.

Frequently Asked Questions (FAQ)

Everything you need to know about compressing PDF files

How do I compress a PDF?

Upload your PDF by dragging it, clicking the upload area, or importing it from Google Drive or Dropbox. Then choose between “Preserve text” or “Maximum compression”, select a quality level if needed, and click Compress PDF. Your smaller file will be ready to download in a few seconds.

How do I import a PDF from Google Drive?

Click the Google Drive button in the upload area. Sign in to your Google account and grant permission to view your files. Select the PDF you want and it will appear ready to compress.

How do I import a PDF from Dropbox?

Click the Dropbox button in the upload area. Sign in to your Dropbox account if needed and allow access. Choose the PDF file and it will be added so you can compress it immediately.

Do I need an account to use Google Drive or Dropbox?

You only need to sign in to your existing Google or Dropbox account when importing files. No extra account is required on our side, and you can still upload files from your device without logging in.

What are the different compression levels and how will my PDF look?

When you choose Maximum compression, you can select one of three quality levels:

  • Basic Light compression. Images stay sharp. Good for moderate size reduction.
  • Recommended Best balance between size and quality. Default for most documents.
  • Extreme Smallest file size. Images may look slightly softer, but text stays readable.

After compression you see original size, new size, and percentage saved.

What is the difference between Preserve text and Maximum compression?

Preserve text keeps text selectable and searchable. Size reduction is usually moderate.

Maximum compression turns pages into compressed images for much smaller files, especially scanned PDFs. Text is usually no longer selectable.

How much smaller will my PDF become?

It depends on the content:

  • Text-heavy PDFs: often 10–40% smaller with Preserve text
  • Scanned or image-heavy PDFs: often 50–85% smaller with Maximum compression
  • Already optimized PDFs: may shrink only a little
Will the visual quality of my PDF decrease?

With Preserve text, quality loss is minimal. With Maximum compression, quality depends on the level (Basic, Recommended, or Extreme).

Are my files safe? Do you upload them to any server?

No. Compression runs 100% in your browser. Your PDF never leaves your device — including files imported from Google Drive or Dropbox.

Can I compress multiple PDFs at once?

No. Currently you can only compress one PDF at a time. If you have several files, simply compress them one by one.

Does compression work with password-protected PDFs?

Not directly. You need to unlock the PDF first and then upload or import it. Once the password is removed, you can compress it normally.

How fast is the compression?

Most files compress in a few seconds. You see the new size right away, then download when ready. No queues or server wait times.

Is there a maximum file size limit?

We recommend keeping files under 50 MB for the best experience. Larger files can still work on desktop, but may be slower on mobile.

Does it work on mobile phones and tablets?

Yes. It works on modern mobile browsers (Chrome, Safari, Firefox and Edge) on Android and iOS. For very large PDFs, a computer is usually faster.

Why did my PDF barely reduce in size?

Some PDFs are already optimized. For a bigger reduction, try Maximum compression, especially on scanned or image-heavy files.

Ready to shrink your PDF file size?

Upload your document now and reduce its size in seconds without losing quality.

Start Compressing →