Secure PDF File and Merge PDF for Computer 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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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
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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:
By far, one of the best programs out there. You guys did a great job on this. I will certainly renew every year. Well worth every penny. There hasn't been one document where i was left unhappy with the outcome. Thank you again! JG Houston, TX
jesse g
2019-03-05
What do you like best?
Simple and easy way I can get things done
What do you dislike?
Wish phone app was just as easy to manuever
What problems are you solving with the product? What benefits have you realized?
Signature and cleaning up Documents
Natasha Flores
2019-02-26
Needed to attach a photo to a PDF and… Needed to attach a photo to a PDF and found PDF Filler such an easy and quick site to use to satisfy my needs. My acting resume now looks even better with a headshot!
Lenny Turner
2020-04-04
the experience was mostly good, however, when coming from a google doc and putting the document here to convert into a pdf, the drop down tabs that were originally in the google doc did not work- in that way, it was tedious.
Anonymous Customer
2023-10-12
Well PDF has help me through many challenges during this Pandemic not being able to get to a fax machine to send documents. I love how easy it is to get through a document and how it allows you to send the documents via mail, IRS & many other good things.
Anonymous Customer
2021-03-16
I wanted to use this tool temporarily… I wanted to use this tool temporarily because I had to sign a lot of documents at the time. I kept it and use it for a lot of things now! Its very useful and worth the money.
Nikki
2021-01-29
Must have I don't have anything to do. The application is clear. I'm a french user, but's is okay for me. I hope i've explain my self well. I recommands this application.
CLAUDINE ANGOUNOU
2020-10-14
I accidentally forgot to cancel my… I accidentally forgot to cancel my subscription (I only wanted to use the free trial) and my PayPal was charged $144. I freaked out and emailed pdfFiller’s customer support and they got back to me within an hour and refunded me! In the future I plan on using their services (right now I can’t afford it) because of how amazing their customer support is!
Brooke
2020-10-07
Great to use Great to use, but wish the font/size/color of text would always remain as the original was during editing existing text, or at least show what that information is to the user.
TZ
2025-02-03

Secure PDF File and Merge PDF for Computer

Are you looking for a reliable way to secure your PDF files and combine them effortlessly? Our Secure PDF File and Merge PDF feature simplifies document management for you, ensuring your sensitive information is protected while allowing for easy file consolidation.

Key Features

Password protection to keep your PDF files safe
Seamless merging of multiple PDFs into one file
User-friendly interface for quick navigation
Support for various file formats for easy integration
Fast processing with minimal resource usage

Potential Use Cases and Benefits

Secure personal and business documents for peace of mind
Combine contracts, invoices, or reports into a single document for easy access
Prepare documents for sharing or presentations without losing formatting
Maintain privacy when sending sensitive information via email
Enhance collaboration by consolidating feedback or notes into one file

With the Secure PDF File and Merge PDF feature, you can solve the common challenges of document security and organization. By protecting your files, you can share them confidently, knowing that your information is safe. Merging files not only saves time but also makes your workflow more efficient. Take control of your documents today.

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!

How to Secure PDF File and Merge PDF for Computer

Step-by-Step Guide: Secure PDF File and Merge PDF for Computer Feature

Do you need to secure your PDF file or merge multiple PDF files into one? No worries, pdfFiller has got you covered!

Here is a step-by-step guide to help you utilize the Secure PDF File and Merge PDF for Computer feature in pdfFiller:

01
Log into Your pdfFiller Account
Visit the pdfFiller login page and enter your registered email and password to log in to your account.
02
Upload Your PDF File(s)
Upload the PDF file(s) you want to secure or merge by selecting them from your computer. To do this, click on "My Docs" from the main menu, then click "Upload Docs." Browse your files and select the PDF file(s) you want to secure or merge.
03
Secure Your PDF File
To secure your PDF file, click on the "Secure PDF" option under "Edit." You can then set a password for your PDF file, enabling you to restrict its access and editing to only those with the password. You can also select the level of protection you want for your PDF file.
04
Merge Your PDF Files
To merge your PDF files, go to "My Docs" and select the files you want to merge. Click on the "Merge" button, and the files will be combined into a single PDF file.
05
Save and Download Your Secure PDF and Merged PDF File
Once you are done editing, click on the "Save" button to save your changes. You can then download your secure PDF file or merged PDF file by clicking on the "Download" button.

In conclusion, securing and merging PDF files has never been this easy with pdfFiller's Secure PDF File and Merge PDF for Computer feature. Follow the above step-by-step guide, and you will accomplish your goal in no time!

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
Select or drag your files, then click the merge button to download your document into one PDF file. Your files are fully secure as they are been transferred over a secure connection.
All merged files maintain the best quality which can be accepted on any web platform (when uploading to a website or attaching as email). Your files are fully secure as they are been transferred over a secure connection. All files are deleted permanently from our servers within one hour of the conversion.
Run the tool, click on Add files / Add Folder option to insert PDFs & enter the password. Click on the Merge option and hit the Next button. Choose the desired Merge option and select the destination path.
Click File > Print to open the print dialog. Click the PDF menu button at the bottom of the print dialog and select Save as PDF. Enter a file name and location for your new PDF file when prompted. The new PDF file will have the same contents as the original, but no password.

How to Secure PDF File and Merge PDF for Computer - video instructions

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