Password Protect PDF and Convert PDF to PNG for Mac 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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Last updated on Sep 21, 2025

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Fill out, edit, or eSign your PDF hassle-free
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Users Most Likely To Recommend - 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:
I didn't know working with *.pdf files could be SO EASY. PDF Filler allows me access to any form I need and to copy all text from page one and paste to all other pages so I only have to complete the form once.
Michael R
2014-08-03
This is a very good program but the monthly fee is high. It would be well worth the cost if you were filling out hundreds of pdfs each month, but for one or two forms, it's hard to justify the expense.
Anonymous Customer
2014-09-11
My experience on line with anything new is always a bit frustrating because of my inexperience. That said I was able to complete my form and print it out in one sitting
Annemarie M
2015-04-22
Liking it so far. But when I'm using the eraser, line, or other tool, it automatically changes back to text add mode after saving the change I've made rather than staying with the eraser, line drawer, etc. If you did it this way b/c more users keep erasing, adding lines, highlights, etc when they intend to make only one change and start typing then nevermind. I would rather it stay with the eraser, highlighter, etc. and I'll switch back to adding text when I'm ready to do so. Hope that helps.
Brook
2015-07-13
i am very surprised at how easy it is to retrieve and add new pdf's to my account. I originally paid for pdfiller because i wanted to send in a release of liability to the dmv. 1 year later and I am now using it for court paper work and have downloaded many forms i can fill out any time I want. Thanks. I am very happy and surprised at this application. I am glad i didn't cancel my monthly payments to pdfiller.
Lisa
2017-02-09
Quite good!Only after I finished, did I see that the date next to my signature at the bottom was misaligned and printing over some text on the form. So, I had to go back to edit that. Very helpful tool, though!
Joanna
2020-02-19
I used the free trial to compile rent due ledgers for the ************** requirement. I did not cancel on time and was charged $180 dollars. I reached out to support and ****** returned my email within minutes. I provided my information to customer service specialist ****** and he fixed the problem. There wasn't any back and forth emails. It was straight to the point. Thank you ****** for being quick and professional.
Melissa H
2022-04-05
I wasn't able to login or access the… I wasn't able to login or access the acct and kara was extremely helpful and patient during the whole process. Now i am able to access the acct and move forward. She was wonderful!!!!
Robert Harvey
2021-08-27
Your product is excellent and if you could scrap the 30 days free trial and create a subscription for 1 week or 2 weeks access for under 2pounds and also give referral bonuses, I think it would be profitable for you.
Okagbare E
2025-05-01

Password Protect PDF and Convert PDF to PNG for Mac

Keep your documents safe and versatile with our Password Protect PDF and Convert PDF to PNG feature for Mac. This dual functionality ensures your PDF files remain secure while allowing easy conversion to a widely used image format.

Key Features

Add strong password protection to PDF files to secure sensitive information
Convert PDF documents into high-quality PNG images effortlessly
Preview files before conversion for accurate results
Batch processing to save time on multiple files
User-friendly interface making it easy for everyone

Potential Use Cases and Benefits

Secure confidential reports, contracts, or personal information
Create PNG images for use in presentations or websites
Share documents safely without risking unauthorized access
Simplify the process of converting PDFs for graphic design needs
Enhance document sharing by providing images instead of PDFs

Whether you need to protect your PDFs or convert them to PNG for sharing and editing, this feature serves as a reliable solution. You can easily safeguard sensitive information while having the flexibility to transition documents into a more accessible format. With this tool at your disposal, you can manage your documents with confidence and ease.

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
Open PDF on Your Mac. The first thing to do is to open your PDF file containing the image or images you want to extract. Select PNG as Output Format. Next, click the “File” option in the top menu bar, then go to “Export To” “Image” “PNG (. Convert PDF to PNG on Mac.
Choose File > Set Password (from the File menu at the top of your screen), enter the requested information, then click Set Password.
In the Preview app on your Mac, open the PDF that you want to password-protect. Choose File > Export, then select Encrypt. You can also enter a new name for the PDF if you want to create a pass worded copy and keep the original PDF unencrypted. Type a password, then retype it to verify the password. Click Save.

How to Password Protect PDF and Convert PDF to PNG for Mac - video instructions

#1 usability according to G2

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