Last updated on
Dec 29, 2025
Shrink PDF File Size in 400kb 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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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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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.
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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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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
Unclear as to whether or not I can save multiple versions of the fillable form for future editing, which I assume, but it's not intuitive, otherwise I would have rated 5.
2015-05-05
I love it Its it is so easy to use. The only problem is I don't need it often enough to pay the cost of it. I only needed a couple of forms, but for a business I can see were it would be a great investment.
2017-09-08
Some of the fill ins didn't exactly fill in right, but this was my first time using PDF Filler, so maybe it is just part of the learning curve for me. Thanks.
2017-11-01
What do you like best?
Allows unlimited potential to edit virtually any document and send it electronically or conventionally. This software is a time saver/life saver.
What do you dislike?
The drawback. The Eraser tool. This tool could use some work as far as the shape of the tool. The option to be circular as well as the normal shape would be of great assistance when editing. A competitor of yours, sorry to mention uses an eraser too that is amazing and I have thought of switching simply for access to the editing qualities of that software. It allows for the one time purchase of their software and I would not pay monthly fees to maintain it either.
Recommendations to others considering the product:
Try out the product and use it!! See what you are missing!!
What problems are you solving with the product? What benefits have you realized?
The editor allows our office to clean up and mark up documents received in our office such as lease agreements or forms attached to a policy which either enhance or negatively impact the clients coverage from year to year. We directly not on those forms in our proposals during renewal negotiations so the client has specifically seen and reviewed how the coverage impacts their insurance needs.
Allows unlimited potential to edit virtually any document and send it electronically or conventionally. This software is a time saver/life saver.
What do you dislike?
The drawback. The Eraser tool. This tool could use some work as far as the shape of the tool. The option to be circular as well as the normal shape would be of great assistance when editing. A competitor of yours, sorry to mention uses an eraser too that is amazing and I have thought of switching simply for access to the editing qualities of that software. It allows for the one time purchase of their software and I would not pay monthly fees to maintain it either.
Recommendations to others considering the product:
Try out the product and use it!! See what you are missing!!
What problems are you solving with the product? What benefits have you realized?
The editor allows our office to clean up and mark up documents received in our office such as lease agreements or forms attached to a policy which either enhance or negatively impact the clients coverage from year to year. We directly not on those forms in our proposals during renewal negotiations so the client has specifically seen and reviewed how the coverage impacts their insurance needs.
2019-05-21
Wow I am so grateful
Wow I am so grateful, this service I really didn't use but one time and I was charged a second subscription. I contacted the company and they immediately refunded my account. Top notch Customer Service!!
2019-04-17
Great and simple pdf editor
Easily edit, share and secure pdf documents.
This is a basic pdf editor that does everything I need. You can edit by adding text, making notes, make tables, add a signature area, etc. It is also very secure and easy to share and collaborate. Even the free version is awesome.
It's not the fanciest, smoothest software but it gets the job done. I would like to see the interface beautified a bit.
2018-05-07
So far I am really liking pdfFiller
So far I am really liking pdfFiller. It's simple to use and has many tools at your finger tips that makes filling out paperwork even easier when you can't get ink for your printer, or you own your business where filling out important documents just looks much neater when done on computer than your own chicken scratch.
2021-07-31
I'm happy with the use of the forms, however it showed a monthy price, so I was suprised when I was charged for the entire year up front. I only needed the product for a couple tax documents.
2025-03-26
I am very happy to share my Review…
I am very happy to share my Review here, PdfFiller is very easy to use Tool and more flexible to edit pdf documents.
2025-02-13
Shrink PDF File Size to 400KB
Are you struggling to send large PDF files? Our Shrink PDF File Size feature offers a simple solution that helps you manage your documents effectively.
Key Features
Reduce PDF file size to a maximum of 400KB
Maintain quality while compressing files
User-friendly interface for quick adjustments
Supports bulk file compression for efficiency
Compatible with all devices and operating systems
Potential Use Cases and Benefits
Send documents via email without exceeding attachment limits
Store files more efficiently without sacrificing space
Share presentations or reports seamlessly with colleagues or clients
Upload files to cloud services faster and easier
Improve document loading times for online viewing
This feature resolves your problem of handling large PDF files. It allows you to reduce the file size quickly, making it easier to share and store. By using this tool, you can work more efficiently and enhance your communication. Take control of your documents with our reliable shrink PDF functionality.
How to Shrink PDF File Size to 400kb
To shrink your PDF file size to 400kb using pdfFiller, follow these simple steps:
01
Open the pdfFiller website or app and log in to your account.
02
Upload the PDF file you want to shrink by clicking on the 'Upload' button.
03
Once the file is uploaded, click on the 'Shrink PDF' option.
04
In the 'Shrink PDF' settings, select the desired file size of 400kb.
05
Choose any additional options you may need, such as compressing images or removing unnecessary elements.
06
Click on the 'Shrink PDF' button to start the compression process.
07
Wait for the 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 shrunken PDF file.
09
Save the file to your desired location on your device or cloud storage.
By following these steps, you can easily shrink your PDF file size to 400kb using pdfFiller's convenient feature. Enjoy the benefits of a smaller file size without compromising the quality of your PDF documents!
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 resize a PDF under 500kb?
How to Compress PDF to 500kb? The upload PDF file you want to compress on this free PDF size reducer. Press the Compress button once your file is uploaded. The facility will start working on your PDF and will provide you with a compressed PDF instantly. Save shrink PDF with a click on the Download button.
How do I compress a PDF to 400kb?
How to Compress PDF 400kb Go to the website and login or create a new account. Select Add New and browse for a file you need to Compress PDF 400kb, from your desktop or cloud storage. Alternatively, browse the library for a template you need.
How do I reduce the size of a PDF to 900kb?
How to compress PDF to 900kb? First of all, select PDF on the compress PDF to 900kb tool. See the preview of selected PDFs on the PDF compressor. Simply, you can compress PDF to 900kb using the slider. Also, you can simply add or remove PDFs from the list.
How do I compress a PDF from 400kb to 200kb?
Open the file you want to compress in the editor and follow these five simple steps: 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 do I reduce a PDF to 800kb?
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.
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