Resize PDF File Size in 400kb 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

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:
Very self explanatory and easy to use. Also being able to save my work in word is very helpful. Easy to save, send and print. Second year using this website and worth the small price.
Kelly E
2016-01-24
Great onboarding, and lifesaving functionality Lifesaver, amazing and frictionless free sign-up journey. Edited and saved a really important PDF in minutes
Zak Smith
2024-08-05
I'm not very tecey. But I managed to get things done. Going to try another sheet filled. I plan on getting hold of Customer Care Resolution, to help me. This program has been very helpful with making my family genealogy organized.
Clydene L J
2022-07-05
I just love this program as we can… I just love this program as we can ensure that any of our forms get filled out and look professional all the time.
Greg F
2021-09-27
The site is good but just takes time to… The site is good but just takes time to load pdf's, when i scroll it takes about 4 or 5 seconds to notice what i did.
aliashory
2021-08-28
I started using PDFfiller 2013 I started using PDFfiller in 2013. Recently, my company started providing a program that was free to me. I canceled my subscription thinking to save some money. It only took 4days to realize I wanted PDFfiller back! This program is so simple and straightforward. I have shared this program with many over the years and they always come back thrilled with it. Lawyers, accountants, I am in real estate and always dealing with leases, riders, applications etc. It is worth the $$!
RK Wood
2021-07-17
I'm very happy with the mid-priced… I'm very happy with the mid-priced version so far. (However, as Yogi Berra famously said, "It's a bit too early to tell the future.")LOL
Thomas
2021-03-15
What do you like best? Very easy to use, very friendly, many options What do you dislike? That doesn't give you the option to save a file to a different folder in your computer What problems are you solving with the product? What benefits have you realized? Re-entering information or missing information, adding signatures
Administrator in Health, Wellness and Fitness
2021-02-16
Adapting from working home, I needed to make forms fillable to get signatures and this service was exactly what I needed! Even after I forgot to cancel my subscription after the free trial, their customer support was auper responsive and able to refund the autopayment. Thank you!
Julien D
2020-06-26

An easy-to-follow guide on how to Resize PDF Size in 400kb securely

Every single byte matters when you share a document with someone online. You or your recipients can quickly run out of storage simply because you’ve shared a lot of big files. Luckily, there’s a way you can Resize PDF Size in 400kb so that you manage your documents with a more streamlined approach.

pdfFiller lets you make documents compact in just a couple of minutes. In addition, you don’t have to worry about safety in the process. Our solution has the framework adopted to safeguard your data online.

How to Resize PDF Size in 400kb online

Follow these straightforward steps and learn how to securely change your file’s size online.

01
To start with, register or sign in to your pdfFiller account.
02
Click the Add New button to import your file.
03
Upload your document by selecting the available document-importing option.
04
Click Upload to My Docs if your file doesn’t need editing.
05
Click on the ellipsis icon next to the uploaded file → Manage documentsSplit.
06
Choose the pages you want to separate from the input file → hit Split.
07
Once completed, you can save your document to your online storage location or download it onto your computer.
08
Add an extra layer of security by setting a password. This option is available in Manage documents menu.

If you’re stuck with your task and can’t proceed to Resize PDF Size in 400kb, you can always rely on the professional support members.

Besides the option to Resize PDF Size in 400kb, you can also make the most of a suite of other tools by pdfFiller that will make your file editing experience safer and prepared. Edit, annotate and eSign and make your forms dynamic with fillable fields. Additionally, we offer a vast catalog of ready-to-use file templates and a powerful document creation solution to create files from scratch.

pdfFiller takes little to no time to grasp and run. You can easily switch from laptop and mobile and access or continue modifying documents from anywhere. Try our tool for your routine tasks!

Resize PDF File Size to 400KB

Efficiently manage your PDF documents with our feature to resize PDF file sizes to 400KB. This functionality helps you create easily shareable and uploadable files.

Key Features

Reduce PDF file size to a maximum of 400KB
Maintain quality and readability of documents
User-friendly interface for all skill levels
Supports multiple file formats for conversion
Fast processing for quick outputs

Potential Use Cases and Benefits

Share documents via email without size restrictions
Upload files to websites that limit file sizes
Save storage space on devices and cloud services
Prepare documents for online submissions or applications
Efficiently manage your digital assets and organization

This feature addresses common issues such as file size limits when sharing or uploading PDFs. By resizing your PDFs to 400KB, you ensure your valuable documents are accessible without compromising quality. Experience smoother sharing and improved workflow with our reliable PDF resizing tool.

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!

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
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.
Simply follow the steps below: On the top toolbar, click Tools > Edit PDF > Edit. Hover your cursor over the image you want to edit. Click and drag the corners to resize the image.
How to compress a PDF to 200kb or less. Open the Tools center and select Optimize PDF Tool. Select the file you want to compress. Choose Reduce File Size in the top menu. Select your options and file version compatibility. Rename and save your file.
How to Compress PDF MB to kb Go to the pdfFiller.com website and login if you're already a registered user or sign up. Click the Add New button and browse for a document you need to Compress PDF MB to kb. Additionally, search for the documents from the file library or enter the document's URL.
How to Compress PDF to 250kb Navigate to the pdfFiller website and login or create a new account. Click the Add New button and browse for a file you need to Compress PDF to 250kb. Additionally, browse the pdfFiller library for the template you need.

#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