Compress PDF 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:
Great!! Saves me lots of time where I would have to find the form print it out and then type the information. The only thing that is a problem is the instructions within the form itself. I feel the instructions throughout the form should not be on the printout itself.
Siquetta P
2015-09-10
Love that its so easy to use. I wish it was free/cheaper since I am only using it to apply for jobs. Would be cool if there was a discount code for people in the market looking for jobs if they took a survey for market research.
Amanda S
2017-02-27
By far the best PDF editor. By far the best PDF editor.It not only worked flawlessly but the experience was awesome.I ask to unsubscribe while in the 30 days free trial and 7 minutes later I was unsubscribed without further questions.
Maxime Lewandowski
2019-09-02
No Scanning! I'm just PDF Filling It makes capturing my customer's signature hassle-free as my business is online. No do-overs! Thank you! Because I make it mandatory for them to sign after placing an order. If they decide to change the order, within the specified time, they can sign to that too. What I like least about this software is that when actually filling in the blanks, the words do not align with the original text. This is an area that needs improvement.
Tracey Ann H.
2022-07-09
I've been using PDFfiller regularly for over 2 years now, and it works wonderfully. I'm able to upload documents, add fillable lines, and get electronic signatures seamlessly. Customer service is also great - prompt and friendly in attending to any questions or issues. Makes running my business that much easier.
Monica K
2022-05-05
********** was the easiest & fastest customer service to resolve a billing issue. If I need to use a document signing company in the future it will most definitely be **********! Thank you ********** Team you truly are amazing! This world needs more kindness in it, thank you for everything!
caprice f.
2022-04-12
The product solved my problem and I got… The product solved my problem and I got a refund without any difficulties when I forgot to cancel my monthly subscription.
Simen Mikkelsen
2022-02-23
Used the product a few times (PDF editor) and really liked it but disn't use it enough to warrant purchase. I forgot to cancel the free trial and was charged the annual fee a few weeks later. The company immediately refunded me when I requested it, and did so without question or issue.
Louise P
2021-08-11
I have really enjoyed using the software. I use it on my iPhone, on my windows PC, on my Mac and my iPad so it's a multiplatform Holy Grail. I still use the program. Have it installed on all my computers and IOS devices. there are a lot of features that I've not used so I can't truly say much about them, but overall I'd definitely recommend the program to others.
Tania M A
2020-08-24

How to Compress PDF in Kb

Follow this guide to Compress PDF in Kb on pdfFiller

01
Go to the pdfFiller website and login if you’re already a registered user or create a new account
02
Click Add New to upload a document you would like to Compress PDF in Kb; browse for the file on your device or one of the cloud storage services
03
Additionally, search for the templates from the pdfFiller library or enter the document's URL
04
If you've the document uploaded to your account already, navigate to My Documents to find and open it
05
Click the Split option in the right-hand menu to Compress PDF in Kb
06
Select the pages you want to extract from the original file
07
Additionally, you can divide the document in a half and keep the pages you need in it
08
Add a title to each document or leave them as is
09
Click Split and wait for the process to finish
10
Click Download Now to save the results

Compress PDF in Kb Feature

The Compress PDF in Kb feature allows you to reduce the size of your PDF files effortlessly. This tool optimizes your documents without compromising on quality, ensuring that you can share and store files easily.

Key Features

Reduces PDF file size quickly and efficiently
Maintains document quality after compression
User-friendly interface for easy navigation
Works on any device with internet access
Supports batch processing for multiple files

Potential Use Cases and Benefits

Perfect for professionals who need to send files via email without exceeding attachment limits
Ideal for students who wish to upload assignments or projects to online portals
Useful for businesses looking to save storage space and improve download times
Great for anyone wanting to archive documents while conserving disk space

By using the Compress PDF in Kb feature, you can solve the common issue of large PDF files that hinder sharing and storage. This tool enables you to streamline your document management process, allowing you to focus more on your work and less on file size limitations.

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 PDF in Kb with pdfFiller

Compressing your PDF files can help reduce their size, making it easier to share and store them. With pdfFiller's Compress PDF in Kb feature, you can quickly and easily compress your PDF files to a smaller size without compromising their quality. Follow these simple steps to compress your PDF files in Kb:

01
Log in to your pdfFiller account. If you don't have an account yet, you can sign up for free.
02
Once you're logged in, click on 'My Forms' in the top menu to access your documents.
03
Select the PDF file you want to compress by clicking on its name or thumbnail.
04
In the document editor, click on the 'Tools' tab in the left sidebar.
05
Scroll down and click on the 'Compress PDF in Kb' option.
06
A pop-up window will appear. Here, you can choose the desired compression level for your PDF file. The higher the compression level, the smaller the file size will be.
07
After selecting the compression level, click on the 'Compress' button.
08
Wait for the compression process to complete. The time it takes will depend on the size of your PDF file and the selected compression level.
09
Once the compression is finished, you can download the compressed PDF file by clicking on the 'Download' button.
10
Congratulations! You have successfully compressed your PDF file in Kb using pdfFiller's Compress PDF feature.

Compressing your PDF files with pdfFiller is quick and easy. By following these steps, you can reduce the file size of your PDFs without compromising their quality. Start compressing your PDF files today and enjoy the benefits of smaller file sizes!

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 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 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
Go to the Compress PDF tool. Drag and drop your PDF file into the tool, choose 'Basic Compression'. Wait for us to work on reducing its file size. Click download to save your PDF document.
How to compress a PDF to 300kb or less. Open the Tools center and select the Optimize PDF Tool. Choose the file you want to compress. Select Reduce File Size in the top menu. Pick your options and file version compatibility. Rename and save the file.

#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