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Discover the simplicity of processing PDFs online
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Fill out, edit, or eSign your PDF hassle-free
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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
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:
For the most part this is an easy and reliable program to navigate. Some forms expect utilization of the text tool which does not always lend to professional format or uniformity. I am unclear whether this is a function of PDFfiller or the form itself.
2015-10-23
Simple and easy to use even for the novice computer user. It's made my documents look professional and well presented which has received a few thumbs up from people I have forwarded the documents to.
2019-09-29
Web based PDF signing tool
I use PDFfiller for signing purchase orders or sending proposals for clients to digitally sign. It's great because users can sign documents in their browser without needing to download anything.
PDFfiller's editing tools leave much to the imagination. I don't use the editing features as I can accomplish what I need with other programs.
2019-09-28
(A1) All across the entire application.
Explains each step-in layman terms. I am 62 years old and I know just enough about a computer to keep myself in trouble. Thank God this was so easy.
2024-12-06
I am impressed with feature this…
I am impressed with feature this software offers for editing PDF files. Absolutely no distortion from the original file, provides marked spaces for edit.
2024-08-20
Great Customer Service!
I had a billing/subscription issue and it was fixed in less than one minute. I had Sam as a support and he was very pleasant to work with. Thank you for having great customer service.
2023-05-26
Basic PDF Editor
I use it for PDFs for our Escrow files. We have clients sign docs and we can make changes to anything that they send us and then send to them to sign off on it
It is easy and very good for a basic PDF editor. You can make simple changes and save it so it looks exactly like a PDF should. You can add and edit text, highlight, adjust sizing, etc.
It is too basic but i understand that it is not Adobe. I wish I could edit the text that is in the PDF more easily to make it match and all look seamless
2021-06-03
I love not having to print forms, then fill them out and scan them. So much time, ink and paper wasted. Using PdfFiller I just upload the document, fill it out and send. Super easy.
2021-01-28
I really appreciate the timely response from the support team in handling my cancelation. They were very professional and was very helpful throughout the process. Thank You, So Much!
2020-07-17
Stay Mobile with Flatten PDF on OnePlus
Experience the convenience of managing your documents with Flatten PDF on your OnePlus device. This feature allows you to easily compress and streamline your PDF documents, making them easier to share and view.
Key Features
Quickly flatten PDFs for easy sharing across platforms
Maintain document integrity without altering original format
Compatible with various apps on your OnePlus device
Simple user interface for effortless navigation
Optimized for fast processing to save you time
Use Cases and Benefits
Share important documents in a universally accessible format
Reduce file sizes for faster uploads and downloads
Prepare business reports and presentations with ease
Organize and archive files without worrying about formatting changes
Enhance collaboration by ensuring everyone sees the same content
Flatten PDF on OnePlus solves your document sharing challenges. By compressing your files, you avoid the hassle of formatting issues, ensuring everyone views your documents as intended. Whether you are a student, professional, or casual user, this feature simplifies your life and enhances your productivity.
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
What does it mean to flatten file?
When you finish editing all the layers in your image, you can merge or flatten layers to reduce the file size. Flattening combines all the layers into a single background layer.
Should I flatten my PDF?
Flattening a PDF is necessary to reduce a document's size, if a PDF includes a form, or to meet other sponsor formatting requirements. PDFs that are not flattened can create errors when users upload documents to a sponsor's system.
How do I flatten an existing PDF?
Make a backup copy of your PDF file. 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.
Can you un flatten a PDF?
Flattening Form Fields is permanent. They cannot be unflattened under any circumstances. Markups cannot be unflattened because editing a PDF's page content changes the flattened markups.
How do I Unflatten annotations in PDF?
A: Starting in PDF Studio 2021, annotations can be unflatten if “Allow unflattening” option is checked when flattening the annotations.
Video instructions on how to Flatten PDF on OnePlus
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