Last updated on
Sep 21, 2025
Lock PDF and Merge PDF for Macbook Pro 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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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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
So far so good!My first transaction on PDF filler. I would say that the passwords and pins are a little confusing for people. Also, brokers don't recognize PDF filler for authenticated signatures. They accept Docusign. I use PDF filler mostly for the ability to make my PDF files fillable and then I transfer them to Docusign. So I do find PDF filler VERY useful.
2014-11-14
Great software
Excellent, the software is very easy to set up and use and gives me all the functions that I need to edit documents.
Ease of use. It allows us to edit documents easily and send them out to clients for signature.
Lack of choice of fonts. When you edit a document, the font is automatically changed, meaning you have to change the font throughout the document.
2019-09-18
The product works
I was able to fill forms and use powerful tools. They are not Adobe though and they charge nearly as much.
The web sight interface was easy to use.
They charge WANton much especially if you want the option to use it for only a short period of time.
2019-09-05
This was my first experience with completing a 1099-NEC. It took me a while to figure out what to do. I really enjoyed it. I hope I haven't duplicated
2024-05-23
PdfFiller
Finally a one stop shop to do everything you need to do with PDF's! It's never been easier to sign documents and move them down the chain of command!
The learning curve is something we're still have trouble with.
2022-12-31
Is been easy to use and edit to change documents or add to the document I am disappointed that I was promised 60% discount but you charged full amount
2022-04-06
Dee was fabulous
Dee was fabulous! I was in a state of panic after not being able to find my file I had work soooo hard on for several days. She was so calm, helpful and supportive. Thank you so much!! Joyce Whitfield
2021-04-27
What do you like best?
It is nice to be able to edit and fill out PDF
What do you dislike?
I wish I could use PDF Filler to merge 2 documents into one PDF
Recommendations to others considering the product:
You should get it.
You can also use it to notarize documents
What problems are you solving with the product? What benefits have you realized?
Filling out PDF
2020-08-13
Best docs tool ever
Best customer service ever, very prompt response with 24hrs manned online support, this tool is the best and very convenient to use. Had an issue with my account so they did refund money i paid for the premium subscription in less than an hour.
2020-06-14
Lock PDF and Merge PDF for MacBook Pro
Keep your documents secure and organized with the Lock PDF and Merge PDF features for your MacBook Pro. Protect sensitive information while easily combining multiple files into one, making your digital task management simpler and more efficient.
Key Features
Secure PDF files with a password
Merge multiple PDF documents into a single file
User-friendly interface for quick navigation
Compatible with various PDF formats
Preview options before finalizing changes
Potential Use Cases and Benefits
Protect confidential documents for work or study
Combine reports, invoices, and presentations into one organized file
Simplify document sharing by reducing clutter
Enhance collaboration by creating unified documents
Manage your files efficiently with easy access
This feature addresses common problems such as document security and organization. By locking your PDFs, you reduce the risk of unauthorized access. Merging documents allows you to streamline your work, saving you time and effort. With these tools, you gain better control over your files, making your work more productive and secure.
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
How do I combine locked PDF files?
File→Create for creating a new PDF file.
Choose Combine Files Into a Single PDF option.
Click on Add File, add all the PDF files you want to merge.
Add password of the locked PDF files.
Click on Combine.
File→Saves to save the PDF file.
How do I merge files on a Mac?
On your Mac, press and hold the Option key, then drag one folder to the location that contains a folder with the same name. In the dialog that appears, click Merge. The Merge option appears only if one of the folders contains items that are not in the other folder.
How do I combine multiple PDF files into one on a Mac?
Open a PDF in Preview.
Choose View > Thumbnails to show page thumbnails in the sidebar.
To indicate where to insert the other document, select a page thumbnail.
Choose Edit > Insert > Page from File.*
From the file dialog, select the PDF that you want to add, then click Open.
How do I combine multiple PDFs into one in Preview?
Open the PDFs you want to combine in Preview. In each document, choose View > Thumbnails. You'll see page thumbnails in the sidebar. Press and hold the Command key, and select the page thumbnails that you want to add to the other document.
How to Lock PDF and Merge PDF for Macbook Pro - video instructions
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