Compress The Size Of PDF File in Kb easily with pdfFiller For Free

Drop document here to upload
Select from device
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent
Last updated on Sep 20, 2025

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

Every PDF tool you need to get documents
done paper-free

Card illustration

Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
Card illustration

Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
Card illustration

Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
Card illustration

Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
Card illustration

Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
Card illustration

Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
The search feature is easy to use, I love the option to save the form to my own computer once it has been filled out. The option to use an app is wonderful.
Shannon
2014-06-11
great except when i want to email something sometimes the other party can't view it as a pdf. i dont get why. I want an option to save my new document in my own hard drive but can't figure out how to other than emailing it to myself. add that option or help me find it.
dawn k
2016-04-27
Everything is at my hand. As I have been out of legal arena for over 10 years, I am confident the form I am filling suggests accurate info on which document to use next.
Maggie H
2016-09-27
Before I got PDFfiller, I couldn't figure out how to add text to PDFs. I work for myself and am required to add information to certain PDFs. I am no longer struggling and frustrated. It is very easy to use and well worth the year's subscription.
Jo, BioVisions L
2017-02-23
Thank you. I appreciate your service. As you can see, I am not in financial backing to do much business on the internet. I do thank you for this session.
Lisa H
2019-01-11
One of the better document editing apps available Allows you to go completely paperless. Create pdf files from Excel, Word, etc. Merge or split different files. Offers electronic signatures. Easy to operate. Can track if the document has been viewed. The app does what it says it does but in order to use more advanced features and options, the cost can get expensive.
Sophia G.
2019-02-05
Excellent support and customer service I registered for an annual membership, but I didn't pay attention that the membership fee is calculated in US dollars. I live in Canada and it was expensive for me. I emailed support department to cancel my membership and they responded in less than an hour and sent me a full refund. I appreciate the excellent customer service and proper support, polite and professional behavior of the staff.
shokouh farshidfar
2023-07-02
Sarah thank you so much for your Critique of My Resume! I absolutely Thrilled with Your REPORT as means of Confirming You SEEN ME as I Truly am! nobody ever LOOKED at me like THAT Before! Can I pay you to look at me Again? pdfFiller truly Filled my life! Please let me work for You!
WESLEY
2022-05-11
This is one handy app This is one handy app! I'm constantly having to sign this or sign that but pdfFiller makes the process so simple and seamless. Gone are the days of printing my doc, signing it, and then scanning it back to HR at our corporate offices. pdfFiller has saved me a ton of time! I love it1
Dave Tuggle
2021-05-25

How to Compress The Size Of PDF File in Kb

Follow this guide to Compress The Size Of PDF File in Kb with pdfFiller

01
Go to the pdfFiller website and login if you’re already a registered user or create a new account
02
Click the Add New button to upload a document you would like to Compress The Size Of PDF File in Kb. Browse for the file you need on your desktop or one of the cloud storage services
03
Alternatively, browse the documents from the file library or enter the document's URL
04
If you have already uploaded the file to your account, go to My Documents to find and open it
05
To reduce the size of a document, click on it and select Split in the right-hand menu
06
Indicate the pages you want to separate from the original file
07
Alternatively, you can divide the document in a half and keep specific pages in it
08
Type file titles or leave them as is
09
Click Split and wait for the process to finish
10
Choose a path for new documents and click the Download Now button

Compress PDF File Size in KB

Are you struggling with large PDF files that are difficult to share or upload? Our Compress PDF feature is designed to reduce file size without compromising quality. This solution allows you to free up space and make file management easier.

Key Features

Reduce PDF file size efficiently
Maintain original quality of documents
Simple and user-friendly interface
Fast processing time for quick results
Compatible with various devices and platforms

Potential Use Cases and Benefits

Share documents easily via email or cloud services
Upload files to websites with size restrictions
Store more files on your devices without running out of space
Improve loading times for online document sharing
Enhance collaboration by simplifying file exchanges

By using our Compress PDF feature, you can solve the problem of file size limitations. It helps you send important documents smoothly, ensuring you never face hurdles due to file size constraints. Embrace a more effective way to manage your PDF files today.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

How to Compress the Size of a PDF File in Kb

Compressing the size of a PDF file can be done easily with the pdfFiller product. Follow these step-by-step instructions to compress your PDF file in Kb:

01
Open the pdfFiller product and log in to your account.
02
Upload the PDF file you want to compress by clicking on the 'Upload' button.
03
Once the PDF file is uploaded, click on the 'Compress' option in the toolbar.
04
A pop-up window will appear with options to adjust the compression settings. You can choose the desired compression level and target file size in Kb.
05
After selecting the compression settings, click on the 'Compress' button to start the compression process.
06
Wait for the compression process to complete. The time taken will depend on the size of your PDF file and the selected compression level.
07
Once the compression is finished, you will be able to download the compressed PDF file. Click on the 'Download' button to save it to your device.

By following these simple steps, you can easily compress the size of your PDF file in Kb using the pdfFiller product. Enjoy the benefits of a smaller file size without compromising the quality of your PDF document.

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
How to Compress a PDF to a Chosen Size to the 'Compress PDF' online tool. Select your PDF, then drag and drop it into the tool. Choose either 'Basic compression' or 'Strong compression'. We'll also show an estimation of the compression rates here. Click 'Choose option' to compress your document. Download your PDF. Jul 8, 2021
How To Reduce PDF File Size Below 100 KB for Free to the Compress PDF tool. Drag and drop your PDF into the toolbox to reduce the file size. Choose the compression type and click “Compress.”The PDF compression tool will shrink the file down. Download the shrunken PDF. Oct 8, 2021
How to compress PDF to 50 KB?First, select PDF on this compress PDF to 50kb tool. Now, see selected PDF preview on the PDF compressor. Also, compress PDF size using slider accordingly. You can add or remove PDF from the list. Finally, download compressed PDF from compress PDF to 50kb tool.
How to Reduce PDF Size Under 500 KGO to pdfFiller and sign in to your account. Click Add New to upload a document you need to compress. Browse for the file on your device or one of the cloud storage services. Additionally, browse a document from the pdfFiller library, enter the document's URL, or send it via email. More items
How to compress PDF to 50 KB?First, select PDF on this compress PDF to 50kb tool. Now, see selected PDF preview on the PDF compressor. Also, compress PDF size using slider accordingly. You can add or remove PDF from the list. Finally, download compressed PDF from compress PDF to 50kb tool.

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025