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Resize PDF Online

by Hung Nguyen

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Optimize and reduce the size of your PDF documents online, at no cost.

If by ‘resize a PDF’ for you meant to cut down its size, then you’ve come to the right place. Smallpdf is the most popular online PDF compressor, and we’ll squeeze your PDF file size down as much as you need.

How to Resize a PDF Online for Free

  1. Go to the ‘Compress PDF’ tool.

  2. Drag and drop your PDF into the red toolbox.

  3. Choose the ‘Basic Compression’ mode.

  4. The software will automatically shrink your file.

  5. Download your file. We’ll also show you the final compression rate here.

Resize PDF Online with Smallpdf

How to resize a PDF document using Smallpdf.

Once you upload your file, the Smallpdf compress tool will detect and replace repetitive patterns within your data with lighter identifiers. Hence, the content should remain intact (fonts, page size, colors), with the PDF size being much, much smaller.

What About the ‘Strong Compression’ Mode?


The second option of this online tool aims to, well, reduce the size of your PDF even further. However, the potent compress setting may come with adverse effects on the quality of your file content. The color may slightly shift, scanned PDFs may become blurry, etc.

We recognize the need of having to resize PDFs to the appropriate amount. For example, the file size limit cap is normally at 20 MB for most free email clients. Better finish the job by any means than not achieving anything at all, correct?

But Where Does the Original File Go?


To our servers, where we compress it is where it goes. Afterward, we will ensure that the file is permanently deleted from our servers (AWS) after one hour of processing. During this time, nobody else should have access to the file except for the sole user - you!

Still, Smallpdf wants to enable easy sharing and collaboration for your digital documents needs. Because of this, once you resize your PDF, you can also share it via email or generate a shareable URL directly on the result page.

Do More With the Resized PDF


If you think the ability to quickly resize and cut a PDF file down to a fraction of its original size is incredible, the fun doesn’t stop there. Via our homepage are 18 amazing tools for you to convert, modify, and even sign these digital files.

That’s right–you can access every single tool on display without cost for, as they’re available for limited use, for anybody browsing. If you frequently use Smallpdf, our site may prompt you to sign up for a paid Pro account.

A subscription will give you unlimited access to the resize PDF tool, albeit it being not the only perk. Having a paid account will allow you to resize many PDFs in one go, up to 5GB. You can even compress and edit PDF files offline, using our desktop app–exclusively available only for ‘Pro’ members!

Resize Multiple PDFs

Resize multiple PDF files simultaneously.

Hung Nguyen
Hung Nguyen
Senior Growth Marketing Manager @Smallpdf