Last updated on
Dec 29, 2025
Optimize PDF Size without Losing Quality 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.
Customer trust by the numbers
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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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
So far so good!My first transaction on PDF filler. I would say that the passwords and pins are a little confusing for people. Also, brokers don't recognize PDF filler for authenticated signatures. They accept Docusign. I use PDF filler mostly for the ability to make my PDF files fillable and then I transfer them to Docusign. So I do find PDF filler VERY useful.
2014-11-14
I needed this for an emergency document and paid for it thinking I probably will not use this much....but was I wrong. I use it all the time and LOVE IT!!!
2016-06-15
I have been having trouble finding forms, and then getting the fill-in fields to work. While I like the end product I'm frustrated that it is not more user friendly.
2018-06-18
Works as you would expect. No flaws, other than I would like to see a way to make the 'circle' option larger for when initials are needed. Great options here.
2019-12-28
I really loved this product but i was…
I really loved this product but i was unable to use anymore, I spoke to Sam on the online chat and straight away sorted out my request, there was no hassle or pressure. Can honestly say this is a great company, and when i can come back to the I will
2020-03-31
Pratical and
PDFfiller is a good option whenever you need to fill forms or edit a pdf file. The online version is also an advantage.
If you don't use it a lot, the princing will be a little excessive to pay every month. A "pay as you go" or pay as you use.
2018-12-20
It's fine so far, I double checked for accuracy off of the tax tables and it calculated correctly which is a positive for me and very helpful and a huge timesaver to know it is accurate and reliable
2021-08-20
I love the product just don't have the need to justify a full subscription. I enjoyed the trial period and had great Customer Service when needed. Very prompt with replies. I would recommend this product.
2020-10-02
Extremely helped my job at work and home! Great one!
I usually help my children to their school works (lent them to use it). And it helps to do paperless and no need to waste ink. We straightly read from the saved file. Excellent.
2020-04-23
Optimize PDF Size Without Losing Quality
Do you often struggle with large PDF files that slow down your workflow? Our Optimize PDF Size feature enhances your document handling experience by significantly reducing file size while maintaining quality. This tool serves as a reliable solution for individuals and businesses alike.
Key Features
Efficient file compression technology
User-friendly interface for easy navigation
Support for multiple PDF formats
No loss of image or text quality
Fast processing speed
Potential Use Cases and Benefits
Share large PDFs via email or cloud services without restrictions
Store more documents on devices with limited space
Improve website loading times by using smaller PDF files
Enhance accessibility for users with slower internet connections
By utilizing this feature, you can effectively reduce the hassle of handling bulky files. It saves you time and effort, allowing you to focus on what truly matters. With optimized PDFs, enjoy a smoother workflow and improve your productivity today.
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 optimize the quality of a PDF?
Choose File > Save As Other > Optimized PDF, or Go to Tools > Optimize PDF, and then click Advanced Optimization. The PDF Optimizer dialog box opens.
What happens when you optimize a PDF?
When you optimize your PDF documents, you will get smaller size files as against non-optimize files. So, if you are tired of waiting endlessly to view the pages of your document, you can make things easier by selecting 'Save as Optimized PDF'.
Does optimizing a PDF flatten it?
If your PDF includes artwork that contains transparency, you can use presets in the Transparency panel of PDF Optimizer to flatten transparency and reduce file size. (Flattening incorporates transparency into corresponding artwork by sectioning it into vector-based areas and rasterized areas.)
How do I flatten a PDF with Optimizer?
Open the copy and choose Advanced > PDF Optimizer. Click the Clean Up tab. Select Remove Hidden Layers Content and Flatten Layers, and then click OK.
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