Password Protect PDF and Merge PDF for Windows Kostenlos
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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:
It has been exceptional EXCEPT it was a little underhanded the way you tell the user how much it will really cost. NOT Free as advertised. I am okay with it but thought it should be state up front.
2014-08-21
experience good so far. just subscribed and I'm still learning my way around,but I alredy like it. Ist meeting my purpose . But I wish they had a PDF to word converter included. My only problem is that when I save it in my computer even in word I'm not able to edit it.I can only edit on PDFiller.
2015-11-04
I had a quick need to make some changes to a PDF. I found your application and it worked immediately. I want to learn more about these other features.
2016-08-07
Time is money in most professions and Real Estate is no exception. This program has saved me a lot of time, money and aggravation and has really simplified the real estate negotiation process. No having to print documents in order to amend them has resulted in more legible contracts and more neatly applied changes. Love it!
2017-04-29
I preveiously gave the program a low rating before technicians showed me that my problem was user error. I find PDFfiller a great addition to my daily work. I can fill the forms in and also go back and edit. Love it!
2018-05-18
prepare your base document, and save. then save as onto your computer desktop, and rename once downloaded onto your computer desktop. reuse the base document over and over for different clients.... works great and gave me the exact form i was looking for.
2018-10-19
Easy Peasy
We are an international company and approvals from everywhere around the globe are always needing signatures.
Ease of use is key for fast turnaround on signing multiple documents.
Can't think of anything to complain about.
2019-09-18
I appreciate a free trial and I was able to get the one form that I needed. I simply cancelled so I don't forget to cancel the 30-day trial and get charged! Thank you very much for the easy to fill form.
2020-06-11
Honesty and integrity are not something…
Honesty and integrity are not something I align with online trial subscription. Most will hope you forget so they can charge you anyway. But PDFfilIer holds to a higher standard. I am NOT an employee forced to write a review. This for real just happened like 10 minutes ago.
I signed up for a trial to complete a job for my employer. Forgot to cancel before the trial ended. I don't make much, so $96 was a hit I wasn't expecting or able to pay. Support had already approved and completed the refund and cancelation of my subscription before I had even finished explaining my situation to the rep in chat (Aiden). The email came from "Sarah from PDFfiller" explaining that it was taken care of while I was still chatting with the rep.
I was expecting a battle. Now I expect to either sign up with PDFfiller when I have a more consistent need or get my boss to pay for the service. The platform was quick and easy to navigate. Based solely on this experience, I would recommend this platform if you are in need of creating these types of documents.
The only thing I would change is that I couldn't find my payment options in my account info to see what card was used. Nor could I find an avenue to change my payment options.
2025-06-18
Password Protect PDF and Merge PDF for Windows
Protect and organize your important documents with the Password Protect PDF and Merge PDF for Windows feature. This tool combines essential functionalities to meet your document management needs effectively.
Key Features
Secure your PDFs with password protection
Easily merge multiple PDF files into one document
User-friendly interface for seamless navigation
Compatibility with various Windows versions
Fast processing and high-quality output
Potential Use Cases and Benefits
Safeguard confidential information in reports and contracts
Combine receipts and invoices for better financial tracking
Consolidate research materials into a single PDF for easier access
Share important documents securely with clients and partners
Streamline editing and reviewing processes by merging feedback PDFs
This solution addresses your document security and management challenges by enabling you to protect your sensitive files while combining several documents into a streamlined format. Take control of your PDFs today and ensure your information remains secure and organized.
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 batch encrypt a PDF file?
[step 2] Expand the Protection section and click Encrypt.
[step 3] Click the Options button on the Encrypt step and select Password from the dialog that appears.
[step 4] Check the Restrict Editing
[step 5] Click Close, then click Save and enter Encrypt Files.
How do I combine password-protected PDF?
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.
How do I password protect a PDF in Windows?
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.
How to Password Protect PDF and Merge PDF for Windows - video instructions
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