Last updated on
Dec 29, 2025
Downsize PDF File Size to 4 mb 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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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.
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Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
initially the software did not allow me to transform document to pdf. contact customer support and eventually the software work as instructed. last the pdf filler content page will not allow the user to rotate the document to the correct form. the document had to be rescan to the proper orientation prior to changing out the format.
2016-12-19
Great program for your doc management, font adjustments,varies tools availability can address an assortment of issues to make your paperwork look professional every time,and it is very user friendly. Thanks
2017-10-05
Site could be more mobile friendly. I'm still learning but so far it has done exactly what I needed and greatly improved my ability to get the docs back I send.
2018-07-14
For someone that has always had terrible hand writing this app is a blessing. Works great, easy to upload forms, fill them in and then save and print.
2018-10-30
Regular User
User friendly software. Best option for creating and editing .pdf documents
Would like to have more flexibility to combine files as well as adding graphics
2019-09-18
That i was able to fix and remove…
That i was able to fix and remove unwanted documents to send just what i needed. The fact that I can fax without having a big machine to do, matter of fact that is one of the reasons that I decided to use pdfFiller. You make filling out important documents easy and able to sign by uploading just a picture of the signature needed. However you could make it easier to be able to create a fax sheet more personal. The one on the website is okay but not personal enough. Maybe I will think about doing the annual thing let's just see what more I can learn to do with your program. thank you for making it so easy to send important documents from the comfort of my home office without having to pay someone else to fax for me
2023-03-23
The number of hours that I was browsing…
The number of hours that I was browsing the site and the features I am more than satisfied and would recommend anyone who wants to have a higher PDF filler easy to use and a professional look is plus.
2022-08-11
I’m amazed with the fast response the…
I’m amazed with the fast response the support team has had! They are very profesional and fast, two things that nowadays are like gold!
AAA for this company!
2021-11-23
Sam's response to my issue concerning…
Sam's response to my issue concerning billing was quick and professional! The matter was handled within 5 minutes. Superb!
2020-12-15
Easily Downsize PDF File Size to 4 MB
Managing PDF files can be challenging, especially when it comes to size. Our Downsize PDF File Size feature allows you to compress your PDFs seamlessly to a maximum of 4 MB. This tool is designed for anyone who needs to share or store documents without losing quality. It's straightforward to use and enhances your document management experience.
Key Features
Compress PDFs to 4 MB or less
Maintain the quality of text and images
User-friendly interface for quick processing
Supports batch processing for multiple files
Compatible with all major operating systems
Potential Use Cases and Benefits
Emailing documents without exceeding file size limits
Uploading PDFs to websites or platforms with size restrictions
Sharing files in collaborative projects effortlessly
Storing and archiving documents efficiently
Reducing storage costs with smaller file sizes
This feature solves the common problem of large PDF files that hinder your ability to share and store important documents. By reducing the file size, you can meet sending limits imposed by email providers and platforms. It ensures that you can share essential information promptly and without hassle. Optimize your workflow today and enjoy quick access to compressed PDF files whenever you need them.
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 you change the size of a PDF size?
You can magnify or reduce a PDF by an exact percentage. Choose File > Print. From the Page Scaling pop-up menu, select Tile All Pages to expose the Tile Scale % option. For Tile Scale, type the percentage you want to magnify or reduce the PDF. Click OK or Print.
How do I resize a PDF in MB?
How to Resize a PDF Online for Free Go to the Compress PDF tool. Drag and drop your PDF into the toolbox. Choose the basic compression mode. The software will automatically shrink your file. Download your file. We'll also show you the new file size here.
How do you change PDF from KB to MB?
Learn how to Compress PDF From KB to mb with pdfFiller Go to pdfFiller and login to your account or create one if you're new to the service. Click the Add New button to upload a document you need to Compress PDF From KB to mb. browse for the file you need on your device or one of the cloud storage services.
How do I shrink the MB of a PDF?
How to Resize a PDF Online for Free Go to the Compress PDF tool. Drag and drop your PDF into the toolbox. Choose the basic compression mode. The software will automatically shrink your file. Download your file. We'll also show you the new file size here.
How do I reduce the size of a PDF to send?
Open the Word document before saving it to PDF. Click File > Save As and select PDF in the file type. Then select Minimum size under Optimize to save the PDF file in a smaller size. Tip: If the file is still too big to email, you should compress the PDF file using a PDF program like Wondershare PDFelement - PDF Editor。
How do you change the size of a PDF in MB?
How to Resize a PDF Online for Free Go to the Compress PDF tool. Drag and drop your PDF into the toolbox. Choose the basic compression mode. The software will automatically shrink your file. Download your file. We'll also show you the new file size here.
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