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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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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:
Excellent service and customer service! Disappointed however that the maximum number of pages allowable is 150. I'm working with much larger documents. The rest is great though.
Kathleen
2017-03-25
It's very good app. The cost for what it offers is alot better then having a Adobe subscription. You can fax and a whole bunch of things. It just made my life easy.
Hassan A
2019-06-22
What do you like best?
The ablitiy to be able to edit documents in PDF format is great. Saving time. When we are bidding on a job i can use the form provided to us from the client. Very easy to use and has worked well ever time I have neede it. Another great feature is that the PDF filler is auto saved in your online profile... so you can take the documents with you.
What do you dislike?
some times when you go to open the PDF from my email directly... it does not up load... so then I have to down load the pdf on to my computure, open PDF fill web app then upload file..... not sure why it does this but it has happened more often lately than it did before.
Recommendations to others considering the product:
It would be great if the filler could be able to authenticate docuements, a big one for us is Bonding, When we submit a bond they require an e-bonding ( look it up) the ebond authenicates the signatures from 3 different parties and leave a digital paper trail that can be confrimed by the client. We recently had to do this and the one website mobile bonds.com has an interface that is not user freindly for set up... and we had to spend countless time with the tech on the phone for the first few bonds. If the filler is able to do this that would be great.
What problems are you solving with the product? What benefits have you realized?
Allowing us to make our bid proposals look great, avoid hand writing in documents, setting us apart from the rest. we also can share the file with my staff making it even better
Dorian Andrews
2019-02-25
This is the best tool I have found thus far. I create digital workbooks for virtual training sessions and this PDF filler makes using the workbook by participants a breeze.
Jay G
2024-04-09
THIS PAGE IS SO USEFUL THE ONLY THING… THIS PAGE IS SO USEFUL THE ONLY THING IS I WOULD LIKE TO HAVE THE OPTION TO SAFE OR PRINT MORE THAN FIVE DOCUMENTS AT THE SAME TIME.
apacheco
2022-01-31
Great software program Great software program, lots of useful and dynamic features, good trial offer - better than all comp., fairly user friendly interface given some basic computer skills, etc. There are a few limitations or features that if were avail., I would increase my rating to 5 instead of 4. Thank you..
T Tames
2021-10-21
This is a great program This is a great program. If i didn't have a similiar program as part of a package, i would have kept it. Definitely recommending to friends looking for a user friendly and affordable program though. Thanks again!
Kim Dunn
2020-07-14
I LIKE USING THE PDFILLER BECAUSE IT HAS SO MANY DIVERSITY..... I LIKE USING THE PDFILLER BECAUSE IT HAS SO MANY DIVERSITY FEATURES YOU CAN USE FOR PERSONAL AND OFFICE. I WOULD RECOMMEND THIS SOFTWARE TO ANYONE WHO IS WORKING IN OR OUT OF AN OFFICE SETTING.
ALICE E.
2020-06-27
I really appreciate being able to transform a regular, annoying PDF into an easily accessible document my clients can sign from any device and be sent by almost any app or service. This will definitely make going paperless a reality for our business
Greg
2020-04-30

Is it possible to Change Font Size in PDF on Smartphone?

Are you tired with carrying your laptop around anywhere you goonly to be able to open and sign that crucial document? Perhaps you have your clients backing off just because you didn’t have the ability to Change Font Size in PDF on your Smartphone? By using pdfFiller, you're getting the solution that frees you from being dependent on software that isn’t cloud based, to be able to work from any device, anywhere.

pdfFiller is the leader in online document management but it doesn't mean it’s challenging to make use of. Change Font Size in PDF on Smartphone and more:

01
Export content. Share samples via links, emails, messengers, or fax
02
Cover sensitive data. Use the Blackout option to hide delicate information that shouldn’t be spread to third parties
03
Request additional authentication. Ask recipients to confirm their identity by taking a photo or linking social media profiles
04
Add new objects. Insert texts, crosses, checkmarks, images, text boxes, or simply draw on a document
05
eSign documents. Create a legally-binding signature and send a form for signing in seconds
06
Convert files. Save your records as files in PDF, Word, Excel, or PowerPoint formats
07
Simplify collaboration. Highlight content or add comments for your colleagues

Deal with documents like a professional. Do business right from your browser or install the application. Regardless of your choice, all your data is protected with the most up-to-date encryption features, so that nobody could get unauthorized access to your data. Don't wait, benefit from professional document management now!

Stay Mobile: Change Font Size in PDF on Smartphone

Easily read and navigate PDF documents on your smartphone with the ability to change font size. This feature enhances your viewing experience, ensuring that you can access important information comfortably, anytime and anywhere.

Key Features

Adjust font size seamlessly for better readability
User-friendly interface for quick changes
Compatible with various PDF viewing apps
Preserves document format while altering text size
No need for additional software or tools

Potential Use Cases and Benefits

Students can view lecture notes without straining their eyes
Professionals can easily read contracts and documents on the go
Elderly users can enjoy clear text without hassle
Travelers can access important travel documents comfortably
Anyone can enhance their mobile reading experience

This feature addresses common issues like eye strain and difficulty reading small text. By allowing you to customize the font size, you gain control over your reading experience. You can focus on the content without distraction, making your mobile PDF interaction smooth and effective.

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
Choose Tools > Edit PDF > Edit . The dotted outlines identify the text and images you can edit. Select the text you want to change. In the right-side Format panel, select a font, font size, or other formatting options.
1 Correct answer. view mode icon at the bottom left and select Text Reflow option. This will reflow the text for better readability. If you want to increase the size more then double tap on the PDF and it will increase the size.
Go to Edit > Preferences > Content Editing > Font Options. Select an appropriate font in the Default font for Add Text drop-down list. Select an appropriate font size in the Font Size drop-down list. Click OK.

Video instructions on how to Change Font Size in PDF on Smartphone

#1 usability according to G2

Try the PDF solution that respects your time.
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