Convert PNG to PDF and Unlock 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:
User friendly. In past years I've been able to bring up the forms I need from www.irs.gov and fill out the forms, save and print the forms. Same is true for Louisiana Dept of Revenue. Now neither of the websites supports filling out any forms. I was extremely frustrated with this change. PDFfiller has made my life so much easier. Thank you
Mel J
2016-03-23
I love being able to fill out forms that I wouldn't be able to normally. My handwriting can be hard to read and this makes it clean and clear. The others parties like it too! :)
Brandy D C
2016-04-14
It's not as intuitive as I hoped to use the mobile apps, and it seems there are many steps to doing the main process which led me to purchase PSF filler--uploading and emailing HIPAA related documents that I've photographed. I'm sure there'll be a learning curve, however, so I am still hopeful. With two helpful and timely chat guidance, I was able to resolve my problems with scanning and uploading photographed documents quickly. I still wish the mobile app allowed me to rename the document so that I wouldn't have to fiddle with it later in the browser app, but am happy with many other features at this point.
Aaron
2018-01-13
I love it for the most part. Just wish I could send a document to a person without knowing their email (ex. directly to their Facebook account) with the ability to view and sign not edit the document. Other than that, it's been great!
Akiaya H
2019-09-25
What do you like best?
It is very user friendly, I love that I can easily access all my doc and change them if needed
What do you dislike?
I wish you could change the text that is on the original document
What problems are you solving with the product? What benefits have you realized?
Neater entries on pages
Patty Foley
2019-05-21
Life made easy If you fill a lot of forms, it is worth it. Otherwise you might not want to pay for the subscription for just one form. It makes editing and filling out forms so quick. The tools are great and the UI is easy to use and clean to look at. Once you fill the form, you have to pay or else you cannot save or print. This is not made clear from the start.
Erica L.
2020-03-19
Great online resource for signing and completing PDF files - I can send documents to people for review and signing directly from the website. - PDFfiller works with our Dropbox account so I can upload files directly from Dropbox. - The more advanced features of PDFfiller require a monthly subscription, though it isn't expensive considering all of the features that are included (custom branding, signature authentications, etc.).
Chris W.
2018-12-12
Outstanding customer service, communication and efficiency!! I highly recommend. They are one of the best, if the THE best company I've ever dealt with!
Kim M
2022-02-02
It took a like while for me to figure out how to do... It took a like while for me to figure out how to do what I wanted to do. But once I did, I was able to create the doc I needed. The part I liked best was the guidelines to put the fillable boxes in line with the other boxes in the document.
Wende E.
2020-06-05

Convert PNG to PDF and Unlock PDF for Lenovo

Transform your PNG images into PDF files effortlessly on your Lenovo device. This feature also allows you to unlock locked PDF documents for easier access and editing. With our intuitive tools, you can manage your files seamlessly.

Key Features

Convert PNG images to high-quality PDF format.
Unlock password-protected PDF files.
User-friendly interface designed for Lenovo devices.
Batch processing for multiple files at once.
Secure file handling for your privacy.

Potential Use Cases and Benefits

Students can convert lecture notes in PNG format to PDFs for easy sharing.
Professionals can unlock and edit essential PDF documents.
Designers can compile PNG images into a single PDF portfolio.
Individuals can store images as PDFs for organized documentation.
Anyone needing a quick and reliable solution for handling PNG and PDF files.

This feature simplifies your file management tasks. By converting PNG to PDF, you get a universally accepted format for sharing. Unlocking PDFs gives you immediate access to necessary documents. These capabilities help you save time and enhance productivity with your Lenovo device.

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
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.
Open a PNG. Drag and drop the PNG file to the program. Perform OCR for the PNG. Go to “Edit” tab and click the “OCR” button, select “Editable Text” option to perform OCR. Convert PNG to Text. Click “Home” > “To Others” >”Convert to Text” button once the OCR has been performed.

How to Convert PNG to PDF and Unlock 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