Docx App - CSA Online 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
Note: Integration described on this webpage may temporarily not be available.
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Discover the simplicity of processing PDFs online

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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
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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:
Love the concept and the ease of working with documents. Had a little difficulty with submitting payment but one of your online folks (Anne) searched and assisted. All is good!
Carol H
2014-10-21
PDFfiller has been great to work with! It has made it easier in running my business being able to send documents to clients and have them fill it out online and submit.
Francisco N
2018-11-29
Managing the signature was difficult and took many attempts. Something near satisfaction was accepted. Otherwise, this app saved me time and made this task easier to complete. Thanks to PDFfiller.
Carla F
2019-01-31
Quick to respond to email. Quick to respond to email.Most of the time when you send an email, it goes out and either no response or very delayed response. NOT so with PDFiller, they responded to my question quickly and took care of the issue. I am very happy with the response as well as how efficient they were. We are signed up with them and will be a great customer of theirs.Peter
Peter Grady
2019-03-04
It helps me to fill the form in Arabic… It helps me to fill the form in Arabic language although I didn't expact that and the arrange of the letter and text is in correct position.
NAAM
2023-04-14
The Customer Service Team is great The Customer Service Team is really obliging and took care of my request right away. Thanks for your great support!
Julia Graf
2021-11-13
I had an wonderful experience and… I had an wonderful experience and whatever I initially thought it is far more better than that.I congratulate entire team for this excellent site.
BISMAY BASANT
2021-10-10
So far this program is a game changer. I wish it was cheaper (a discount for teachers on a year subscription would be wonderful!!) but I like what I am seeing so far;)
Elizabeth L
2020-08-23
Very satisfying!!! It has been a very helpful tool to modify and to fill up forms related to my work. The only thing I regret is not have been subscribed earlier.
MAX
2020-05-10

Docx App - CSA Feature

The Docx App offers a powerful feature known as the CSA (Content Stream Analyzer) that helps you optimize your document management processes. With CSA, you can analyze, streamline, and enhance your workflows, making document handling more efficient than ever before.

Key Features

Automatic content analysis to identify key themes
Real-time suggestions for improving document structure
Integration with various file formats for enhanced compatibility
User-friendly interface for easy navigation

Use Cases and Benefits

Perfect for businesses looking to improve document clarity
Great for writers and editors seeking constructive feedback
Ideal for educators wanting to analyze student submissions
Useful for researchers needing to synthesize large volumes of information

With the CSA feature, you can conquer common document challenges. It helps you spot inconsistencies, reduces the time spent editing, and ultimately enhances your content quality. Whether you are drafting a report, creating educational materials, or compiling research, the CSA feature makes document management simpler. By addressing your specific needs and providing actionable insights, the Docx App supports you in achieving your goals efficiently.

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
A DOCX file is a document created by Microsoft Word or another word processing program, such as OpenOffice Writer or Apple Pages. It contains formatted text but may also include images, drawn objects, and other document elements.
A file with the DOCX file extension is a Microsoft Word Open XML Format Document file. DOCX files are used for everything from resumes and cover letters to reports, flyers, documentation, invitations, newsletters, and more.
Microsoft Word (version 2007 and above) is the primary software program used to open and edit DOCX files. If you have an earlier version of Microsoft Word, you can download the free Microsoft Office Compatibility Pack to open, edit, and save DOCX files in your older version of MS Word.
DOC is a document format used by Microsoft Word, while DOCX is its successor. Both are relatively open, but DOCX is more efficient and creates smaller, less corruptible files. If given the choice, use DOCX. DOC is only necessary if the file will be used by pre-2007 versions of Word.
0:59 2:31 Suggested clip Word 2007: How to convert .docx files to regular .doc documents YouTubeStart of suggested client of suggested clip Word 2007: How to convert .docx files to regular .doc documents
If you don't have Word installed, or your version of Word is older than 2000, you can still open and print a DOCX file using the Word viewer in addition to the Compatibility Pack. You must have both the Microsoft Word reader and the compatibility pack installed to open DOCX files.
0:20 1:43 Suggested clip How to Convert Doc to DOCX — YouTubeYouTubeStart of suggested client of suggested clip How to Convert Doc to DOCX — YouTube
Microsoft Word (version 2007 and above) is the primary software program used to open and edit DOCX files. If you have an earlier version of Microsoft Word, you can download the free Microsoft Office Compatibility Pack to open, edit, and save DOCX files in your older version of MS Word.

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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