Convert PNG to PDF and Lock PDF for Lenovo 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
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 it was going to cost money. I am just a private person trying to get Medicare reimbursement. The print is very tiny so proofreading is hard.
Anonymous Customer
2015-04-12
What do you like best?
In our busy world, it is great to find a tool like PDFfiller to make things easier and to make sure private information is kept private. We no longer send attachments that can be read in an email that has sensitive information. Using templates has cut down our document sharing time! We now create a template that can be used over and over again. The big win in the form filling tool is the ability to add validation for the data entry.
What do you dislike?
The only complaint I get from users is PDFfiller documents are not showing up in their primary inbox. They have to search for them. We made it mandatory to check the box to send a copy of the email notification to our email address. This has made it easier to forward the email with the secure link to the recipient if they can't seem to find the PDFfiller email generated to them.
Recommendations to others considering the product:
Really take a look at your existing document and take the time to setup templates.
What problems are you solving with the product? What benefits have you realized?
In our office, we have tons of forms that need to have checkboxes and other types of validation done along with making sure it is easy for our users can easily sign the documents. PDFFiller provides the validation we need for our users to fill out forms properly. PDFfiller has multiple ways for users to sign electronically whether they are on their mobile device or their laptop; signing electronically is easy for them.
Debra Johnston
2019-03-08
Very easy to use Very easy to download a document, fill in the required fields and electronically sign. When I had a small issue customer service solved it quickly.
Mark Lamb
2019-07-21
Marie was awesome in the support chat Marie was awesome in the support chat. Was quick on processing my request and even offered a discount. Thanks for being quick and effecient.
SIR MIKE
2024-10-24
PDFfiller is an online platform that… PDFfiller is an online platform that simplifies document management by offering tools for editing, signing, and sharing PDF documents. It provides a user-friendly interface and robust features for editing, signing, and securing PDF files, making it a valuable resource for individuals and businesses alike.
A Nagi
2024-04-15
What do you like best about the product? pdfFiller by airSlate saves me so much time when dealing with documents . You can easily share documents and ask for signatures via messages or even share them via QR code What do you dislike about the product? A bit tedious when it comes to editing the document. you would have to edit it in a word format and then proceed again with converting it to PDF format. It's a little bit too many clicks for my liking What problems is the product solving and how is that benefiting you? The ease of use is the major factor in using PdfFiller. It has help me communicate with the people I dealt with and send documents for their review and signature
tami tan
2023-06-01
amazing and user friendly and… amazing and user friendly and distinctive than any other pdf editors ... this is a must for any pdf users in such low cost
ganeshan k
2023-01-20
Misappropriation of Assets originated from Investment Loan Account in FRAUDULENT This is to inform the Public readers, that the property of 20 Glen Dhu Road Kilsyth 3137 Victoria Australia, in illegal documents from conveyancing from August 2019 and the amount with Realestate.com.au in forgery and fraudulent. The House has two living areas and commercial/residential road (corner) and the value posted for one living areas only. The person who deal with State Trustees Victoria Australia is for 40 years imprisonment.
Jocelyn Raborar
2022-05-27
Amazing software and Customer Service is responsive and HELPFUL! I beta test software as part of my job at ************** and PDFfiller is top notch! *** **** ******* ***** Psychologist
Adam P
2020-05-25

Convert PNG to PDF and Lock PDF for Lenovo

Transform your images seamlessly with the Convert PNG to PDF and Lock PDF feature for Lenovo. This tool enables you to convert your PNG files into secure PDF documents easily. Whether you need to share images, create presentations, or store your files securely, this feature empowers you to do so with confidence.

Key Features

Convert PNG images to high-quality PDF files effortlessly
Apply password protection to your PDFs for added security
User-friendly interface suitable for all skill levels
Batch conversion for processing multiple files at once
Maintain image quality during conversion

Potential Use Cases and Benefits

Share important images in a professional PDF format with clients
Secure sensitive documents by locking them with a password
Organize images into a single PDF for easy access and sharing
Enhance productivity by converting and securing files in bulk
Access converted files easily across different devices

With the Convert PNG to PDF and Lock PDF feature, you can address common challenges like file security and the need for professional presentation. By converting your images to PDFs, you maintain their quality while ensuring they can only be accessed by those you trust. This tool not only saves you time but also provides peace of mind.

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
PNG images are ideal for web graphics, especially logos, illustrations, and graphs. They can shrink to very small file sizes when colors and elements are limited, which is another plus. PDFs keep your images in one packet, so viewers can print and save designs and booklets easily.
Open the PDF file with preview in Mac and at the top, click on the File menu and select “Export”. Step 2. On the Export window, change the format to “PNG” and adjust quality and resolution accordingly. Now hit “Save” and the PDF file would be converted to PNG.
Go to the Image to PDF converter. Upload your image. We accept PNG, as well as GIF, TIFF, BMP, and JPG. Then click 'Create PDF Now'.
Open the JPG by double-clicking on it. Once it's loaded, press Ctrl + P to print, or use the print icon at the top-right of the Photos app. In the menu that appears, you'll be able to choose where you want to print your picture to.
Go to the Image to PDF converter. Upload your image. We accept PNG, as well as GIF, TIFF, BMP, and JPG. Adjust the formatting as needed. Then click 'Create PDF Now'. Continue to modify your PDF, and/or download it to your local drive when you're done.

How to Convert PNG to PDF and Lock PDF for Lenovo - 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