Downsize PDF File Size in 150kb 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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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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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

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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.
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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.
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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.
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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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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.
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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 user friendly site. I did lose my first document, since I didn't select the 'DONE' box first. Maybe just a little pop up message on how important that step is would be helpful.
Lora R
2015-06-21
Excellent, Excellent tool for business traveler and mobile home office. Just used it to sign documents while traveling and found it very usefully for my purpose. Can't be any happier with the ease of operation and format. Love it. Pete
Peter B
2017-05-02
What do you like best?
I have been using pdf filler for approximately 2 years now - and I can't say enough good things about it. It's very easy to convert documents into a fillable format.
What do you dislike?
I can't think of anything - as the features I've currently used meets my expectations.
What problems are you solving with the product? What benefits have you realized?
It allows me to convert any document into a professional fillable document.
Jimmy Johnston
2019-02-25
Paul was fantastic Paul was fantastic. I have been chatting with several other people since April 3 and no one could figure this problem out. I was emailed that this issue had been referred to technical support and they could not provide adequate assistance. As I am not computer friendly, Paul was very helpful. He was very patient with me. I am extremely grateful to him for resolving this issue.
Jack Blaine
2019-04-12
Great customer support for a great app I appreciate the pdfFiller app as it makes completing forms easy. Customer service responds quickly and resolves issues more than satisfactorily
Celeste Banks
2022-04-26
This popped up as I was looking for an… This popped up as I was looking for an IRS form and this was perfect as my printer is on the outs and I NEED to send these forms to the IRS
Julie F.
2021-06-13
so far everything is good to use and very easy, I need to explore more but I do not have time. A little confused with the folders but I will learn very soon.
Edgar B
2020-06-26
Excellent customer service and support Excellent customer service and supportI recently needed to contact them for an issue I had and was helped by Shannen. I used their Live Support Chat, waited less than 1 minute and my problem was dealt with with in less than 5 minutes. Shannen was helpful, polite and made it easy. The fact that this took such little time, without hassle was fantastic. Excellent company to deal with!
Emma Petts
2020-05-27
I love that I can easily cancel my… I love that I can easily cancel my Trial subscription. It is not scam, you can try and leave if you dont need it.
Jasmina Markovic
2025-05-16

An easy-to-follow guide on how to Downsize PDF Size in 150kb safely

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 many big files. The good news is that, there’s a way you can Downsize PDF Size in 150kb so that you manage your paperwork with a more streamlined approach.

pdfFiller enables you to make files compact in just a few minutes. Moreover, you don’t have to worry about safety in the process. Our solution has the framework adopted to protect your documents online.

How to Downsize PDF Size in 150kb online

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

01
To start off, register or log in to your pdfFiller account.
02
Click the Add New button to import your document.
03
Upload your file by choosing the available file-importing option.
04
Click Upload to My Docs if your document doesn’t need editing.
05
Click on the ellipsis symbol next to the added file → Manage documentsSplit.
06
Select the pages you want to separate from the original file → hit Split.
07
As soon as processed, you can save your document to your online storage location or download it onto your computer.
08
Add an additional layer of protection by setting a password. This option can be accessed in Manage documents menu.

If you’re stuck with your task and can’t proceed to Downsize PDF Size in 150kb, you can always rely on the dedicated support team.

In addition to the feature to Downsize PDF Size in 150kb, you can also take advantage of a set of other tools by pdfFiller that will make your document editing experience more secure and organized. Edit, annotate and eSign and make your forms dynamic with fillable fields. In addition, we provide an extensive library of ready-to-use file templates and a powerful document creation solution to create files from scratch.

pdfFiller takes little time to learn and run. You can easily switch from laptop and mobile and access or continue modifying documents from anywhere. Try our tool for your daily tasks!

Downsize PDF File Size to 150KB

Reduce your PDF file size to meet your requirements without compromising on quality. Our tool ensures that you can share documents seamlessly, whether for work, school, or personal use.

Key Features

Compress PDF files to 150KB while maintaining essential content
User-friendly interface for quick and easy uploads
Supports batch processing for multiple files at once
Compatible with all major operating systems and devices
Secure processing to protect your data

Benefits and Use Cases

Ideal for emailing files that exceed attachment limits
Perfect for uploading documents to websites that restrict file sizes
Helps students reduce file sizes for assignments and presentations
Enables businesses to share reports and proposals efficiently
Useful for archiving documents without taking up excessive space

By using our tool to downsize your PDF files, you eliminate the frustration of file size limitations. You can now share, upload, and store your documents with ease and confidence, knowing they fit seamlessly into any platform. Experience a hassle-free way to manage your PDFs and streamline your workflow today.

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
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 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.
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.

#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