Convert PPT to PDF and Lock PDF for Windows 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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Edit, manage, and save documents in your preferred format

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Convert documents with ease

Convert text documents (.docx), spreadsheets (.xlsx), images (.jpeg), and presentations (.pptx) into editable PDFs (.pdf) and vice versa.
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Start with any popular format

You can upload documents in PDF, DOC/DOCX, RTF, JPEG, PNG, and TXT formats and start editing them immediately or convert them to other formats.
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Store converted documents anywhere

Select the necessary format and download your file to your device or export it to your cloud storage. pdfFiller supports Google Drive, Box, Dropbox, and OneDrive.
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Convert documents in batches

Bundle multiple documents into a single package and convert them all in one go—no need to process files individually.
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Preview and manage pages

Review the documents you are about to convert and exclude the pages you don’t need. This way, you can compress your files without losing quality.
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Protect converted documents

Safeguard your sensitive information while converting documents. Set up a password and lock your document to prevent unauthorized access.

How to quickly convert and compress your PDF?

Upload your document

Upload a document from your device, cloud storage, email, or URL.
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Use the converter tool

Select your document and click Convert .
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Select format and destination

Decide on the file type and where you want to save the converted document—on your device or in your cloud storage.
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Manage pages and additional settings

Once everything is set, you can access advanced settings to compress a document by excluding unnecessary pages, set passwords, and select other options.
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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

Customer trust by the numbers

64M+
users worldwide
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average user rating
4M
PDFs edited per month
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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 just needed to do one form, so I chose the one-month subscription. It worked great, but it was not clear when I purchased that ONE month, that I would be setup on further automatic monthly payments, otherwise I would have opted out of that. Now I'm considering filing a formal complaint, unless my $20 renewal fee is credited back to my account ASAP!
Jesse
2016-03-19
I received some paperwork that needed to be signed and sent back to sender in a timely manner. PDFfiller was the only way I could do this. I had no access to a printer or fax machine. I'm trying to learn all of the use of the PDFfiller. I am currently trying to learn how to download some of my saved papers and sign them, then send them out. I forgot how I did it yesterday.
Jacqueline G
2017-11-08
Amazing! I was skeptical, at first, because I couldn't see how often I'd be using the service, but then -- WOW! What a luxury! PDFfiller pays for itself with convenience and ease of use, and the features seem limitless! Thanks!
Isaac Reddick I
2019-08-27
What do you like best?
I use the e signatures the most and I like the ability to convert documents into other docs.
What do you dislike?
I would like to be able to load multiple documents for signatute instead of one at a time.
What problems are you solving with the product? What benefits have you realized?
I can know how contracts signed digitally.
virginia van lear
2018-12-31
What do you like best?
The program is very quick and easy to use. Uploads your documents very fast. You can type or alternate any pdf or word file. It saves it in no time. You can go back and look at any file you have uploaded. Everything is saved. I also love the fact I can use it on my phone as well through the app. It is extremely convenient. I can fill out new vendors forms very quick which saves me time.
What do you dislike?
I haven't come up with any problems for as long as I have used it...over 2 years now.
What problems are you solving with the product? What benefits have you realized?
It saves me a lot of time. It is a very convenient and fast way to fill out forms or alternate them. Adding a signature on any form is so easy to do through pdffiller. I don't have to print the form, chase my husband to sign, scan it and then email it. Imagine just uploading your form, adding the signature which is already saved and you're DONE :D
Administrator in Industrial Automation
2019-05-21
Quick efficient and helpful They answered my query really quickly and politely and refunded my subscription within 24 hours as I found I didn’t need it anymore. Fantastic service not often found!
michelle
2023-01-11
Must Have !!! My overall experience with this software is awesome That I can change and edit and convert and sign my document There is nothing I don't like about this software I use it for everything
April D.
2022-01-12
What do you like best? super convenient to find the forms that i need What do you dislike? when i want to go back to a doc i have to go all the way back to the main doc menu What problems are you solving with the product? What benefits have you realized? Almost all the forms i need are on PDF. I rarely have to look elsewhere
Monica Arguijo
2021-10-14
Its ok. It would have been nice to know that you would request credit card info before being able to save or print your document. Thats bad faith and almost akin to blackmail, considering a Govt agency has you approved as a trustworthy company to handle sensitive information.
Brent D
2021-02-16

Convert PPT to PDF and Lock PDF for Windows

Easily convert your PowerPoint presentations to secure PDF documents with our Convert PPT to PDF and Lock PDF feature for Windows. This tool not only simplifies the conversion but also adds a layer of protection to your important files.

Key Features

Simple conversion from PPT to PDF format
Option to lock PDF with a password for added security
User-friendly interface for seamless navigation
Support for various PowerPoint versions
Fast processing speeds for quick results

Use Cases and Benefits

Share your presentations without the risk of editing or unauthorized access
Protect sensitive information in business presentations
Preserve layout and formatting during the conversion process
Effortlessly distribute PDFs for meetings and collaborations
Ensure compatibility across different devices and platforms

This feature addresses your need for security and flexibility. With our solution, you can convert your presentations with confidence, knowing that your content remains intact and protected. Simplify your workflow and safeguard your presentations 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!

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 your PowerPoint from your computer. Our online PPT to PDF converter will turn your PPT or PPTX into a PDF in seconds. Download your new PDF and save it to your computer. When the conversion is done, your PPT, PPTX, and PDF files will be automatically deleted.
Open your PowerPoint presentation. Click 'File' > 'Print'. Via the 'Layout' section, click the dropdown. Choose 'Notes' instead of 'Slides'. Choose 'Save as PDF' and click 'Save'.
Batch Convert PowerPoint to PDF. Click “Add Files” to choose the PowerPoint file or directly drag and drop the PowerPoint file you want to convert. Save the PDF File. Import PPT Files to the Program. Start to Convert Multiple PPT to PDF.

How to Convert PPT to PDF and Lock PDF for Windows - 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