Last updated on
Dec 29, 2025
Shorten Word File Size less than 400kb For Free
Drop document here to upload
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
Try these PDF tools
Edit PDF
Quickly edit and annotate PDFs online.
Start now
Sign
eSign documents from anywhere.
Start now
Request signatures
Send a document for eSignature.
Start now
Share
Instantly send PDFs for review and editing.
Start now
Merge
Combine multiple PDFs into one.
Start now
Rearrange
Rearrange pages in a PDF document.
Start now
Compress
Compress PDFs to reduce their size.
Start now
Convert
Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
Start now
Create from scratch
Start with a blank page.
Start now
Edit DOC
Edit Word documents.
Start now
Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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.
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.
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:
"As a Virtual Real Estate Wholesaler, I'm doing deals all over the country via phone and email. PDFfiller really gets the job done for me!" Mark Van Dyke, VirtualWholesalerUSA.com
2014-10-02
I am strongly satisfied. Forms are very easy to make correction and automatic save feature is very very helpful. Thank you so much. Also the annual fee is extremely affordable. Five stars for sure
2015-04-03
I am not very computer literate although the system is simple enough to work with that I can do everything so far. I need to edit a scanned document and this is more challenging any help would be appreciated.
2016-11-29
I found this program very user friendly. I am grateful for being able to do my tax forms and get all the information I need on this site. I would highly recommend it to anyone trying to make since of tax forms.
2018-02-16
Good service and glad that it is available to use. A lot better than printing out forms and filling them out by hand. I highly recommend PDFfiller.
2019-01-30
spanish feedback: me encanta la manera tan facil en que podemos conectar con aquellos clientes que tienen dificultad para todo cuando se necesita una firma, puedes usar emails, textos y mas, te da solucioin a tu trabajo y eso es LO GENIAL QUE AHI PARA TODO TIPO DE CLIENTE UNA SOLUCION
2024-09-27
A feature that is critical to my business broke on Friday. I was able to interface and get updates about the fix over the entire weekend and had the problem solved by the dev team before Monday morning. Awesome teamwork from the folks at PDFiller from end to end. Highly recommend.
2023-10-30
Sign it!
In general is a very good option to fill and sign documents. I did not buy the paid version because I was in need at the moment and it worked perfect for me.
I like the easy to follow process of this software. You dont need to know how to use it. As soon as you start filling any document everything march along the way
I did not see any cons because I was able to resolve my needs with the free trial. I would hesitate to pay for this software if I need again.
2022-07-23
This service is very user friendly and…
This service is very user friendly and offers a wide range of editing tools. Perfect for filling out paperwork and editing invoices. For chromebook it's better use the service on a web browser rather than the app.
2022-04-26
Shorten Word File Size Less than 400KB
Reducing the size of your Word documents is crucial for efficient sharing and storage. Our feature helps you compress files to less than 400KB, making it easy to email or upload them without hassle. You can enjoy a smooth workflow and save valuable space on your device.
Key Features
Compresses Word files to under 400KB
Maintains document quality
User-friendly interface
Compatible with various Word versions
Fast processing time
Potential Use Cases and Benefits
Sharing documents via email without size restrictions
Uploading files to cloud storage efficiently
Improving upload speeds for online submissions
Saving storage space on devices and servers
Ensuring your documents remain accessible on multiple platforms
This feature solves common challenges by minimizing file sizes without compromising content. You can focus on your work instead of worrying about file limitations. Experience seamless sharing and improved organization by keeping your documents easily accessible and manageable.
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 do I reduce the KB of a Word document?
Go to File > Options > Save. Under Preserve fidelity when saving this document, do either of the following: Make sure that Embed fonts in the file is not selected. If you do embed fonts, select Embed only the characters used in the document (best for reducing file size) and Do not embed common system fonts.
How do I reduce the file size of KB?
How To Reduce PDF File Size Below 100 KB for Free Go 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.
How do I make a file size less than 500kb?
Follow this guide to Reduce Photo File Size Below 500 KB with pdfFiller Go to pdfFiller website and login to your account. Select Add New and browse for a document you need to Reduce Photo File Size Below 500 KB. sync your cloud storage account to be able to search for documents from there.
How do I compress a Word document less than 500kb?
Compress Word Files Online Drag and drop your Word file into the document compressor. Choose “Basic compression.” We'll reduce the file size and change it to PDF format. Download the file and then convert it back to Word format. The file should now be in a much smaller size—don't forget to download it!
Why is Word document size so big?
Another reason Word files may get very large is because of font embedding. Users may embed fonts if they are using a non-standard font and plan to open the file on a device that does not have the font installed.
How do I change the KB size in Word Online?
How to Online Word Document Reduce From 1.26 MB Into 1024 kb Go to the pdfFiller website and login if you're already a member or sign up. Click the Add New button to upload a document you need to Online Word Document Reduce From 1.26 MB Into 1024 kb. Alternatively, browse the pdfFiller library for a template you need.
#1 usability according to G2
Try the PDF solution that respects your time.