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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.

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What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
To start with I struggled a little bit and thought it wasn't working. However, five minutes into it I was already achieving what I wanted from the editing futures of this program. Many thanks.
Pinar
2017-02-21
What do you like best?
I have several forms that need to be filled out and faxed back to companies. I love that I can fill them out online and fax the PDF back, rather than fill in and fax by hand.
What do you dislike?
The home screen can be confusing to find all my documents sometimess
What problems are you solving with the product? What benefits have you realized?
Solving having to do things by hand. Easily reproduced when needed.
User in Health, Wellness and Fitness
2019-05-28
What do you like best?
We like PDFfiller because our patients don't want to have to waste precious minutes of their appointment time completing a health history update in the office. It's much simpler, not to mention faster, to have them do it at home and submit it when they're done!
What do you dislike?
The log-in process for the patient who has never used this service. We have a few patients who value their privacy and would rather not have to create an account in order to complete a form.
What problems are you solving with the product? What benefits have you realized?
PDFfiller is wonderful for our new patients! We send them to our website and have them navigate to where we have the clickable button to either complete the forms online or to print and bring them with to their appointment.
Robin McRath
2019-11-05
Outstanding Tool To Fill Out PDFs. Enjoy it. Pdf filler does exactly what it says. It allows you to fill out that important PDF without having to print or use old school tactics (namely pen and ink) to get work done. No cons whatsoever. It delivers and I definitely downloaded it at some point in life and was satisfied with whatever reason I did.
Brian B.
2018-10-03
I had a surprisingly positive… I had a surprisingly positive experience when I discovered that I had a subscription after several months of notifications being filtered into my spam folder. When I contacted the company, I received a prompt and thorough response. I wasn’t hassled or blamed; instead, I felt understood and supported. My account was canceled for me, and I was informed that I would receive a full refund. It was a great relief to be treated with such understanding. Thank you!
KN
2024-11-11
I have never seen anything like it as it almost talks with you and advise you. loved it and have an issue now I missed som work ro do but was not able to leave so I need to boorrow this for free 48 hours?
Ahmed
2024-10-07
This is my first experience with online documents and I had a difficult time maneuvering through the settings. Would like more information on how to use.
Melody R
2023-08-17
What do you like best? PDF filler has allowed me to not only make forms being filled out easier but also allows me to keep them archived on their server so I had don't have to look for them. What do you dislike? I think the only downside I would say is the send to sign can be a little confusing. Some of my clients have had issues trying to sign things when I've used this feature. What problems is the product solving and how is that benefiting you? The only time I've had issues is when a form wouldn't load to the system. Customer service has always been great helping me out. They usually have the problem resolved quickly
Michael Rife
2022-11-03
Chatted online to cancel and refund $96 that I was charged and I got a pretty friendly guy named Peter! He was sweet and fast! If I needed this particular application again, I would definitely reuse them!!!
Cabria M
2020-05-03

Flip PDF to OF on the internet

Enhancing a PDF file is not an easy job, particularly if you don't have an advanced editor at hand. You should have programed B to work with documents seamlessly. To prevent wasting time, just transform your PDF to OF and make the material accessible to any consumer.

If you hunt for a file converter for transforming a PDF to OF, you might truly feel puzzled with all the over choice of tools obtainable on the net. Most of them are sole objective solutions without further enhancing resources. So why use several various programs for processing the same paperwork when there’s an end-to-end powerful editor just at your hand?

pdfFiller is a fantastic solution for controlling your templates. It permits you with all PDF enhancing abilities, legitimate digital signatures, file conversions, and doc protection functions, all at an inexpensive value. To show PDF into OF, you simply must add a sample, alter it, if needed, and save all modifications. The uploading strategies are vast and contain browsing a file out of your gadget, importing it from the cloud, through a secure URL, e-mail ask for, or obtaining a template in the pdfFiller’s kind library.

Obtain the most from pdfFiller:

01
Unrestricted conversions. Convert PDF to OF and back as often times when you want, eliminating the necessity for handbook data entry etc.
02
Sophisticated editor. Use the feature-reach solution to show your static paperwork into interactive, easy-to-share types. Produce reusable templates to avoid wasting your time and effort and effort.
03
Seamless access. Shop a mass amount of your data in the app and accessibility them to download and deliver them from any device.
04
Safety. The system ensures the protection of the documents whilst processing and storing them. Every step is under handle with industry-leading safety and privacy requirements.

Choosing pdfFiller, you decide a solution to all document-related difficulties, including converting PDF to OF. Any method that utilized to get several hours now may be completed in several minutes. Determine within the membership that suits your requirements and obtain started out.

Convert PDF to OPF Feature

Are you tired of dealing with incompatible formats? Our Convert PDF to OPF feature simplifies your document management by transforming your PDF files into OPF format effortlessly.

Key Features

Quick and efficient conversion from PDF to OPF
User-friendly interface for seamless operation
Support for batch processing to save time
High-quality output preserving original content
Compatibility with various devices and applications

Potential Use Cases and Benefits

E-book authors and publishers can convert manuscripts for wider distribution
Students can format research papers for specific submission requirements
Businesses can prepare documents for better integration with e-publishing platforms
Individuals can organize personal documents conveniently

This feature solves your formatting challenges by providing a straightforward way to convert PDF files into OPF format. You will experience enhanced compatibility and improved accessibility, which means you can focus on your content rather than on technical issues.

Get documents done
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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!

How to Use the Convert PDF to OPF Feature in pdfFiller

Converting PDF files to OPF format can be a breeze with pdfFiller. Follow these simple steps to make the most of the Convert PDF to OPF feature:

01
Login to your pdfFiller account. If you don't have an account yet, you can easily create one for free.
02
Once you're logged in, click on the 'Convert' tab at the top of the page.
03
From the dropdown menu, select 'PDF to OPF'.
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Click on the 'Choose File' button to upload the PDF file you want to convert. You can also drag and drop the file directly into the designated area.
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After selecting the file, click on the 'Convert' button to start the conversion process.
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Wait for the conversion to complete. The time it takes will depend on the size of the PDF file.
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Once the conversion is finished, you will be able to download the converted OPF file. Simply click on the 'Download' button to save it to your device.
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Congratulations! You have successfully converted a PDF file to OPF format using pdfFiller's Convert PDF to OPF feature.

With pdfFiller's user-friendly interface and efficient conversion process, you can easily convert your PDF files to OPF format in just a few simple steps. Start using the Convert PDF to OPF feature today and experience the convenience it brings to your document management workflow.

FAQ on How to Convert PDF to OF

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
Select the PDF file, then select Convert books. Select the Output format drop-down menu and choose PUB. Review the pub file output, then close the viewer to return to the Caliber library. Right-click the pub file in your library and select Open containing folder to see where the file was saved on your computer.
How to convert a PDF to a PUB file? Choose the PDF file that you want to convert. Select PUB as the format you want to convert your PDF file to. Click “Convert” to convert your PDF file.
The OF file is located within the OPS folder. 'OF' stands for Open Package Format. It's essentially an XML file, although it has the file extension.
'OF' stands for Open Package Format. It's essentially an XML file, although it has the file extension. Furthermore, it lists all the contents of your pub, and tells the reading system what order to display the files in.

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Best Meets Requirements- Summer 2025