PDF Compressor

Drag & drop PDF files here

or browse from your device

Supports multiple .pdf files · Processed entirely in-browser

Compressing 1 of 1…
All files compressed Saved 0 MB in total
Compress pdf files online free without any hassle in seconds. Optimize PDF for reading without compromising size, text, images or quality of the document. No software installation, registration or watermarks are required, our PDF compressor can be used directly in the browser. You can compress your documents quickly and easily, whether you need to upload, store, share or send a pdf compressor free file.

How it works

Three clicks. Zero friction. No accounts, no installs, no waiting.
Step 1

Upload your PDF

Click and drag your PDF file into the compressor or click and browse in your device to select a PDF file.

Step 2

Compress PDF in seconds

Our online PDF compressor helps save space without compromising readability and usability for sharing, uploading, and storing.

Step 3

Download compressed PDF

Get your smaller PDF now, and include it in your e-mail or add it to your website, online forms or send it to a cloud storage or share it among documents.

What makes our PDF Compressor unique?

Find a free pdf compressor online that doesn’t require any software or registration and works quickly to compress files without all the unnecessary clutter.

To shrink the size of PDF files.

Reduce the size of large PDF files, making them easier to upload, send, store and share online.

Free PDF Compression

Compress PDF files without sign-up, hidden fees or watermarks.

Compress PDFs Online

Squeeze your documents right from the internet browser, without having to download desktop applications or software.

Maintain Document Quality

Optimize pdf files without losing text, images and vital document content.

Works on: All devices

Compress PDFs on Windows, macOS, Linux, Android, iPhone, tablets, and more, on modern devices.

Fast & Private

Simply compress PDF files on the fly in your browser, without downloading the software.Compress PDF files directly from the browser, with a streamlined process for speed and convenience.

Popular Applications of PDF Compression

Email Attachments

Compress large PDF files for attaching and sending via email services.

Online Applications

Compress PDF files before posting resumes, applications, forms, certificates and other documents online.

Business Documents

Squeeze the reports, invoices, proposals, presentations, contracts, and other business documents to share easily.

School & University Work

Reduce the size of assignments, research papers, notes and project papers before uploading them online.

Website Uploads

Optimize PDFs before uploading to websites, portals, knowledge bases or content management systems.

Cloud Storage

Reduce file sizes and upload / download times by compressing large pdf files.

Document Sharing

Make smaller PDFs, which are easier to share via messaging apps, email and collaboration tools.

Digital Archiving

When creating large collections of PDFs for long-term storage and access from electronic files, use compressed documents.

How PDF Compression Works

Text, images, fonts, metadata and other embedded resources can be included in PDF files. Some documents can be unnecessarily large due to high resolution images, duplicate resources, embedded fonts, etc. in the file.

A PDF compressor optimizes the information in the document to save the overall size. Compression can either strip down image information, optimize embedded resources, and strip out unwanted information without affecting the document's functionality and readability.

This is dependent on the original PDF and the amount of compression. Many large images in a document can compress to a greater extent than a simple pdf with just a few images in it.

Highlights
  • Compress PDFs online
  • Reduce size of large PDFs
  • Minimize the size of PDF files.
  • Make documents more easily shareable.

PDF Compression vs Original PDF

Feature Original PDF Compressed PDF
File Size Larger Smaller
Sharing May require more bandwidth Easier to share
Email Upload May exceed attachment limits More convenient
Storage Uses more space Uses less space
Online Uploads Can take longer Generally faster
Document Format PDF PDF
Best For Maximum original data Easier sharing and storage

Common PDF Compression Problems & Fixes

PDF is still too large

The degree of size reduction is dependent upon the original document. PDFs that contain a lot of images might need more optimization to get a large reduction.

Compression changed image quality

Very compact PDFs may feature lower resolution images, especially if the original text documents have high-resolution photographs or graphics.

There are numerous images in PDF

Documents with a lot of images are going to be bigger. Reducing the size of the PDF may help to make these documents easier to store and share.

It's hard to upload PDF

Compressing a PDF can help make a document smaller, if it has a maximum file size limit.

Uploading to PDF is too slow

A smaller PDF will also need less data to be transferred, which means that it will be easier to upload, particularly with a slow internet connection.

Formatting Changes

Use reliable PDF compression methods that reduce file size while preserving the original document layout, formatting, fonts, images, and overall appearance.

PDF Compression, Explained

Understand the importance of PDF files being large and how compression can make them easier to deal with.

What Is a PDF?

PDF is a file format known as Portable Document Format. It aims to maintain document formatting, text, images, fonts, and layout on various devices and operating systems.

PDF is used for reports, invoices, forms, resumes, contracts, manuals, assignments, certificates and business documents.

What is PDF compression?

Compression of PDFs is the procedure through which the size of the PDF can be decreased by optimizing the data existing within the document. This may include optimization of images, embedded resources, and document data.

The aim is to produce a smaller, but still useful, PDF file to view, share, print and store.

When is it a good idea to compress a PDF?

If the document is too large to upload, attach to an email, send via a messaging service or conveniently store on a device or cloud account, compress a PDF.

When you want to compress a pdf without any additional software, use a pdf compressor online free.

PDF Compressor vs Other Online Tools

While searching for on-line PDF compression services you may encounter services like pdf compressor i love pdf. The common theme in these tools is that they will reduce the file size of a PDF in order to make it easier to upload, store, or share.

If you prefer to compress PDF online without all the hassle, our PDF compressor offers an easy to use and user-friendly solution.

Frequently Asked Questions

Everything you need to know before you start converting.
What is a PDF compressor?
A PDF compressor is a program that can either be installed on your computer or accessed online that compresses PDF files by optimizing the contents of the file without compromising the usability or legibility of the document.
Is this PDF compressor free?
Yes. We developed this pdf compressor free software to enable you to compress pdf files without paying a subscription or signing up an account.
How to compress pdf online?
Yes. No software is needed to use our pdf compressor online, it works directly in your web browser.
Do you have a free pdf compressor online?
Yes. Use our online pdf to pdf compression tool to compress pdf files without having to download or install any software or sign up.
What is the maximum amount of PDF size I can cut down?
The amount of compression varies depending on the original PDF. Documents with lots of pictures are more likely to be reduced than documents with lots of text.
Will compression of PDF files affect quality?
The compression may impact quality based on the optimization of the pdf. If a significant amount of file-size reduction is necessary, there may be some loss of image quality in PDFs containing a large number of images.
Can I share a PDF that is compressed?
Yes. If an email sender has limits on attachments, you can compress a PDF to make it easier to attach to an email.
Is it possible to compress PDFs from a mobile device?
Yes. The PDF compressor is available to use from a modern mobile browser, whether on Android, iPhone or some of the other supported mobile devices.
Is there software that I can install to compress a pdf?
No. You don't need to install any PDF compression software to use the online PDF compressor, it is accessed via your web browser.
Is this the same as PDF Compressor I Love PDF?
Both tools are used to compress PDF files, but they are two different online services. If you require a basic PDF size reduction service online, you can take advantage of our PDF compressor.

More Free Converters

Quick, private, and unlimited conversions for every format.
Scroll to Top