Compress PDF to Less Than 100kb easily with pdfFiller For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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Last updated on Dec 26, 2025

Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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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
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Every PDF tool you need to get documents
done paper-free

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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.
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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.
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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.
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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.
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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.
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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

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users worldwide
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average user rating
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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:
I found it to be very useful but expensive. I wish I would've had the option of paying monthly instead of a one time upfront transaction with no warning.
LaTanya G
2016-04-10
It think it can be very useful once I get the hang of it. Disappointed that for a yearly subscription of $72.00 you don't get access to the erase feature. This feature is even free online. Do consider and include it.
Bridget B
2016-10-15
I really enjoy PDF filler. It is way more user friendly than Adobe Pro and it is so convenient for it to be a website that I can access from anywhere. Who ever created this is a genius!!!!!!!!!!!!
T Jones
2017-09-21
Everything has been great, with the exception that it takes a while to open up the documents on mybox. There should be a feature for ''QUICKVIEW" of the document you want to open.
rigo
2017-12-04
An easy to use program, great features, that allows you to complete and edit PDF forms. I'm no computer expert, but found this program straight forward to follow. Makes completing forms online so much easier than printing onto paper and filling out the long way. Would highly recommend it.
kim
2018-08-19
Some of the text sizes seemed to change when editing, and the positioning of the text didn't always seem to be consistent with existing and added text
Ben
2019-05-17
I have been using PDFfiller for years introducing the product to companies that I have been employed and in my personal life. I think it is a great product for producing documents, faxing, email, changing forms with ease or having documents signed in a quick and efficient manner. Thank you PDFfiller, you have made my work life a lot easier.
Leita B
2019-11-18
I make lots of documents and list for my job as admissions in a assisted living facility, this has been by far the most effective way to make them pdf files thus far.
APRIL D D
2024-01-16
AMAZING CUSTOMER SERVICE - JED I have been conversing with the support agent called Jed, and he has made my vision of this company very clear. Supportive, constructive and quick with the aim to please. He has dealt with my query in such a fast and efficient way that is was delightful to receive a response from him. I just want to thank Jed for the amazing customer service received by him and I surely hope his company sees this and praises him. @PDFFILLER
Luan
2023-03-23

How to Compress PDF to Less Than 100kb

To Compress PDF to Less Than 100kb, follow these steps

01
Navigate to the pdfFiller website and login or sign up with a new account for free
02
Click Add New and browse for a document you need to Compress PDF to Less Than 100kb; sync a cloud storage account to be able to search for documents from there
03
Additionally, browse a template from the pdfFiller library or enter the document's URL
04
If you have the file uploaded to your account before, 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
Select the pages you would like to extract from the original file
07
Additionally, you can divide the document in a half and keep required pages in it
08
Add a title to each document or leave them as is
09
Now click Split
10
Choose a path for the documents and click Download Now

Compress PDF to Less Than 100kb

Reducing the size of your PDF files makes sharing documents easier. With our Compress PDF to Less Than 100kb feature, you can streamline your workflow and enhance communication.

Key Features

Easily compress any PDF file without losing quality
Ensure your files are below 100kb for seamless sharing
Fast processing times to save you valuable time
User-friendly interface simplifies the compression process
Compatible with various devices and operating systems

Potential Use Cases and Benefits

Share documents in emails without exceeding attachment limits
Upload PDFs to websites that have strict file size requirements
Save storage space on your devices by reducing file sizes
Enhance collaboration with team members by sharing smaller files
Prepare documents for online forms that require compact file submissions

With this feature, you can tackle the challenge of large PDF files head-on. It minimizes the time and effort needed to adjust file sizes, allowing you to focus on your work. By keeping your PDFs small, you can improve efficiency, enhance accessibility, and make your professional communications smoother.

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 a PDF to Less Than 100kb

Compressing a PDF file to less than 100kb can be easily done using the pdfFiller product. Follow these simple steps to achieve the desired file size:

01
Open the pdfFiller website or app and log in to your account.
02
Upload the PDF file you want to compress by clicking on the 'Upload' button.
03
Once the file is uploaded, select the 'Compress PDF' option from the available tools.
04
In the 'Compress PDF' window, you will see a slider that allows you to adjust the compression level. Slide it to the left to decrease the file size.
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As you adjust the compression level, you will see the estimated file size displayed below the slider. Make sure it is less than 100kb.
06
After setting the desired compression level, click on the 'Compress' button to start the process.
07
Wait for the compression process to complete. This may take a few moments depending on the size of your PDF file.
08
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 steps, you can easily compress your PDF file to less than 100kb using the pdfFiller product. Enjoy the benefits of a smaller file size without compromising the quality of your 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
Open NXPowerLite offline file compression software. Drag your PDF file onto NXPowerLite. Hit the "Optimize" button to reduce file size. Check the reduction then share or send the smaller optimized file.
Open the PDF in your PDF editor. Click File > Optimize PDF > Select the Remove Objects tab. Choose the objects to remove. Click OK, then Optimize.
Click “Choose File" button (Or) Drag and drop files in the drop area to upload the file. Select "Output Settings" like optmize font, image, content and image quality. Click "Compress File" to compress pdf file size to 100 kb. Click "Download File" to download the new compress PDF file.

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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