Compress GIF to Under 400kb 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 Jan 16, 2026

Try these PDF tools

Edit PDF
Quickly edit and annotate PDFs online.
Sign
eSign documents from anywhere.
Request signatures
Send a document for eSignature.
Share
Instantly send PDFs for review and editing.
Merge
Combine multiple PDFs into one.
Rearrange
Rearrange pages in a PDF document.
Compress
Compress PDFs to reduce their size.
Convert
Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
Create from scratch
Start with a blank page.
Edit DOC
Edit Word documents.

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:
Excellent. The only improvement I can imagine is something to assist with right aligning text, or to keep the same spacing if filling in several columns.
C Missen
2014-05-14
I am enjoying the service. It is user friendly from a design point of view. I don't have feedback from the recipient experience however I will rate that component once I receive the feedback.
Montiqua
2015-04-15
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
What do you like best?
I like the accessibility of the application. I can access from anywhere by just using my browser.
What do you dislike?
Sometimes the sizing is a bit tricky and I need to play around with the edits to make it work.
What problems are you solving with the product? What benefits have you realized?
I am able to take pdf documents, to which I have lost or never had the source file, and easily change them to what I need. Also, another great use is to fill-in forms in forms to which i only have hardcopy.
Administrator in Facilities Services
2020-02-03
Thanks to this app I am able to edit my work pdfs Thanks to this app I am able to edit my PDFs so easily. This helps a lot in my corporate life. I do not know what I would do without it. my favorite feature is the one that allows me to edit the order of the pages, and merge PDFs together.
Jaclyn Ramos
2024-09-12
I had to send an important medical document on short notice and needed to fill a pdf document that was not fillable. I quickly did a search on the internet and found the pdfFilter. To my surprise, it was effortless to do, and was able to send the document in a timely manner.
Laura
2022-10-23
Super easy to learn and use. Would love to learn how to create templates for budget, expenses etc. I used pdfFiller to change bank statements from pdf to csv . Thank you
Jackie M
2021-08-15
What do you like best? Intuitive, easy to manage documents. Students are able to fill out forms with minimal instruction. What do you dislike? I would like a way to connect filled forms to student work in Google Classroom. Recommendations to others considering the product: During this time when learning takes place in a virtual environment, using pdfFiller will make assignments easier to create and to access and use by students. What problems are you solving with the product? What benefits have you realized? Most worksheets are in pdf or word versions. PdgFillet allows me to assign the worksheets, students can enter their responses without having to print form to then upload with their responses, getting the email alerting that worksheet is completed.
Diana Jacobson
2021-02-11
Prompt and honest. They answered my query online immediately and refunded for an incorrectly charged (not their fault) subscription fee within the hour! Was not expecting such prompt service and honesty to be fair, but so grateful they are honourable.
Michaela Avery
2020-09-06

How to Compress GIF to Under 400kb

Follow this guide to Compress GIF to Under 400kb on pdfFiller

01
Navigate to the pdfFiller.com website and login if you’re already a member or create a new account for free
02
Click Add New and browse for a file you need to compress
03
Additionally, browse the pdfFiller library for the template you need
04
If you've the file uploaded to your account already, go to My Documents to find and open it
05
To Compress GIF to Under 400kb, click on it and select Split in the right-hand menu
06
Indicate the pages you would like to separate from the original file by clicking on them
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 a few seconds
10
Choose a path for the documents and click the Download Now button

Compress GIF to Under 400KB

Save space and improve your online sharing experience with our Compress GIF to Under 400KB feature. This tool allows you to reduce the size of your GIF files without losing quality, ensuring that your visuals remain clear and engaging.

Key Features

Reduces GIF file size under 400KB
Maintains high visual quality
Supports various GIF formats
Simple and intuitive user interface
Fast compression process

Use Cases and Benefits

Ideal for website optimization and faster loading times
Perfect for sharing on social media without size restrictions
Great for email attachments that require smaller file sizes
Helps maintain clarity in presentations and digital portfolios
Useful for mobile applications where data usage is a concern

With our Compress GIF to Under 400KB feature, you can tackle the common issue of oversized files effortlessly. By reducing the size of your GIFs, you enhance user experience by ensuring quicker load times and easier sharing. This solution caters to your needs, allowing you to focus on creating engaging content without worrying about file 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!

#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