Do I reduce the document’s quality when I compress a PDF?

When you optimize your PDF, many people think you will get a lower-quality document. The truth is that compressions with and without loss do exist. For this second case, you will be able to reduce your PDF by looking for repeating patterns, thus compressing the PDF without losing quality.

Is the size reduction percentage of an online PDF always the same?

No, the percentage reduction is not always the same. Depending on the PDF type, the percentage will be greater or lesser. As mentioned earlier, to compress a PDF the tool searches for repeating patterns, and thus the resulting decrease in PDF size will depend on pattern similarities within the document.

Can I recompress a PDF that has already been optimized?

Yes, you can compress a PDF a second time. Nevertheless, you will not obtain a greater file reduction, because the first time around the PDF was compressed to its maximum capacity without losing quality. If you are not concerned about quality, you can use other apps that reduce the size of a PDF by approximation (note this process is irreversible).

Can I compress several PDFs together and at the same time?

Yes, you can compress several PDFs at the same time. Online tools allow the upload of several PDF files at the same time, and once compression is final it is the user who decides if he wants to download them separately (or in a ZIP file).

FormatPDF » Compress PDF

COMPRESS PDF

Q: Must I have access to a decompression app?

No, you don’t need to install anything. The final compression is a PDF file so you will be able to open the file without having to decompress it. The compression only eliminates the unnecessary parts within the PDF to obtain the most practical result possible, for optimal transport and delivery. As you can see, it’s all advantages when compressing a PDF online.

Q: What happens with compressed PDFs? Are they stored in the Cloud?

Once a PDF file is compressed and downloaded, the original document is erased from our servers. If you have doubts and need reassurance please visit our Privacy Policy Terms and Conditions page. You may exercise your rights at any time.

Compress a PDF online. Reduce the size of a PDF without downloading programs.

Uploading file...

It may take a while, don't close the browser :)

or drag and drop the PDF hereWrong file type. Please, try again.

Convert PDF To Word

Convert PDF To JPG

Edit PDF

A Handy PDF Compressor To Reduce Your Files’ Size

Compressing a PDF is the action of reducing its size, that is, bringing down its weight so that it occupies less space. When you reduce the size of PDFs, they take up less room, so you can easily attach them to emails or upload them wherever you need to.

With the convenient tools at FormatPDF.com, you’re can straightforwardly compress PDFs online, in addition to making other modifications such as editing, converting or even dividing this type of file. Give our tools a try, and you’ll see how effective they are!

Compressing A PDF Has Never Been Easier

Would you like to know how to resize PDFs on our page? All you need to do is select the tool, choose the document, and reduce the PDF’s file size. As you see, it’s a simple process, just like uploading a document and clicking a button. Then, you just download the compressed file for free!

Fully Online PDF Size Reducer

Forget about downloading an app to compress files. With FormatPDF.com you can complete the process wholly online. Why download a PDF compressor when you can do it on a website? Think of all the tools we offer you, and how much space they would take up if you had to install them on your device. It’s much more convenient here!

Secure And Confidential

Compressing a document with our tool is 100% secure throughout the whole process. Working online, without having to download an app, significantly reduces the risk of you installing unwanted third-party programs or other software. Also, our site is fully protected, ensuring your privacy at all times. With our PDF compressor, you get optimum results, always.

Forget Advertisements

Advertisements may be necessary for some, but most of the time they’re a nuisance. Imagine having access to state-of-the-art editing tools with ads randomly popping up! Your wish is our command, and with FormatPDF.com it’s possible: compress PDFs without losing quality, with no interruptions, and no advertisements.

Compress PDF Files On All Your Devices

What’s more, with our service, you can compress documents on any device you own. Our tool can reduce your PDFs’ size online on a PC, a smartphone, or a tablet. You can use our PDF compressor wherever you are, with the same excellent results you would get on your computer at home.

Compress As Many Files As You Need

1,2,3 … compress all your PDFs! Normally, if you need to resize PDFs, it's because you have many documents and they don’t all fit on your hard drive. Or maybe you just want to send PDFs as an email attachment and you need the files to be as small as possible. So go for it!

Step By Step: How To Resize A PDF

To resize a PDF with our tool, follow these steps:

On the top of this page, you’ll find a button with the text “Select PDF file”. Click on this button to upload the document that you wish to compress. Alternatively, this button is surrounded by a dashed line area, into which you can drag and drop the file.
Now’s the time to put the compression tool to work. Once the file has been uploaded, you’ll be offered three options to the right of the page:
1. Maximum compression.
2. Recommended compression.
3. Low compression.
Choose one of these options, and it will be highlighted in green. Bear in mind that the stronger the compression, the lower the quality of the file. Then, click the red “Compress PDF” button.
Lastly, click on “Download” to retrieve your resized PDF. Et voilà!

Once These Steps Are Completed, You Might Need:

Once your file is compressed, you may want to split it to send various pages separately. Our split tool can help:

Split Your PDF Into Multiple Files

Alternative Ways To Compress PDFs

Online PDF Compressor On Windows

Do you have a paid Adobe Acrobat Reader DC subscription? If so, you can use Adobe’s software to reduce the size of PDFs in Windows 10, Windows 8, and previous versions. To compress on Windows, follow these steps:

Open your document with Adobe Acrobat Reader DC.
In the lateral menu found on the right, click on the option “Compress PDF”.
Click on the “Compress Now” option in the emerging window.

Resize PDFs On Mac

To compress on Mac, go to Preview, the document viewer incorporated by Apple into all macOS devices. The steps to reduce the size of your document are as easy as:

Open your file with Mac’s Preview.
Once the document is open, go to “File” and click on “Export”.
In the emerging menu, look for the option “Quarts Filter”. Click on it and choose the option “Reduce PDF File Size” from the list.
Lastly, click “Save” and you’ll have your compressed document.

Compress A PDF File On Android

Unfortunately, Android does not offer an in-built PDF compressor. To compress on Android, users must resort to third-party apps like Adobe Acrobat Reader, which offers a tool to reduce the size of PDFs for a fee. To compress with Adobe, follow these steps:

Open Adobe Acrobat Reader and click the “Files” menu on the lower part of your screen.
Select the file you wish to compress and open it.
Click on the three-dot icon on the upper right side of the screen.
Unfold the lower menu and click on “Compress PDF”. Now all you need to do is follow the app's instructions.

Resize PDFs On iPhone/iPad

iPhone and iPad users also have options to resize PDFs. Apple offers integrated file-compressing tools for its desktop computers and laptops, but not for its mobile devices.

As such, to download an iPhone app, visit the App Store, search for “compress PDF”, and choose an app. Then, navigate to the file’s location, click on it, choose the option “Share”, and then select the compression app you’ve installed.

Frequently Asked Questions About Compressing A PDF

Do I reduce the document’s quality when I compress it?

When you resize PDFs, many people think you’ll get a lower-quality document. However, this depends on the amount of compression you choose. The lower the level of compression, the better-looking your document will remain. As such, it's best to select a balance between these two factors.

Is the file’s compression percentage always the same?

No, the percentage isn’t always the same. Depending on the file, the percentage will be greater or lesser. This is because, to compress a PDF, the tool searches for repeating patterns. Thus, the decrease in size will depend on the similarities within the document that can be safely removed.

Do I have access to a decompression app to use this tool?

No, you don’t need to install anything. The resulting file is in PDF format, so you’ll be able to use it without having to decompress it. The compression only eliminates the unnecessary parts within the file to obtain the smallest file possible, for optimal sending and uploading. As you can see, it’s all advantages when compressing PDFs online!

What happens to my compressed files? Are they stored in the cloud?

Once your file is compressed and downloaded, the original document is erased from our servers. If you have doubts and need reassurance, please visit our Privacy Policy Terms and Conditions page. You may exercise your rights at any time.

Can I recompress a PDF that’s already been optimized?

Yes, you can resize it a second time. Nevertheless, you won’t be able to obtain a greater file reduction, because the first time around the file was compressed to the max amount without losing quality. If you’re not concerned about quality, you can use other apps that reduce the size of PDFs (note this process is irreversible).

Can I compress several PDFs at the same time?

Yes, you can compress several PDFs at the same time. Our online tool allows the upload of several files all at once, and once they’re compressed, you decide if you want to download them separately or together in a ZIP file.