Lock PDF and Convert PDF to PNG for Computer Gratuit

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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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Dernière mise à jour le Dec 12, 2023

Discover the simplicity of processing PDFs online

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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
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

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:
4.9/5 Stars. Not a full 5 because I felt as though there was a bit of deception as far as the subscription process was concerned but my problem was resolved quickly and more importantly EASILY! As far as PDFfiller as a program, it is EXCELLENT and EASY!!!! No hassle!
Dana D
2015-09-03
Awesome!! I don't know what I have done without you. I do real estate transactions weekly and I love that I can upload different documents, edit them, and send them out. Well worth the cost. Thank you.
Don N
2018-08-07
It successfully sent a fax for me. I was able to upload forms that I needed from years past. So far, it has been exceptional. Will re-rate after a little more experience with it.
Sylvia
2019-01-15
i really love this app, cause this is the app that help me to edit all my document that i cant edit in another app..i just suggest that if you can give a
Marites B. A
2024-06-08
Has worked perfectly fine with editing… Has worked perfectly fine with editing non-fillable pdf forms. No issues with saving in various forms to my computer. Works just as expected.
David Slocum
2021-06-13
I had a little bit of trouble using… I had a little bit of trouble using this app but I didn't put much time into trying to learn. I think it would be worthwhile for anyone who works with documents to learn how to use this app but I just don't have the time and only needed one document. When it came time to cancel, they were gracious enough to make it easy by clicking on cancel instead of having to call or write and jump through hoops. Thank you pdfFiller for letting me try your app.
Linda McC
2020-10-31
I am a relatively new user to pdffiller, but have found the platform user friendly and does exactly what I need it to. Helping me modernise a lot of statutory requirements for e-signatures and template creations. When I experienced issues loading documents due to permissions through my work network, the support team at pdffiller responded quickly and continued assisting myself and co-ordinated with my employers IT support function to resolve it within 24 hours, allowing me to get on with my job.
Calum R
2020-09-25
What do you like best? I often need to fill out forms for work. With Pdffiller it is simple to upload forms, fill out, save and download to email. I also use it to merge PDFs as well. It saves all of your work and keeps the documents in my account for future reference or an easy change/update. What do you dislike? There are a lot of features and sometimes it is hard to find exactly what I need. A simple "How do I .... in pdffiller on google usually takes care of it quickly. What problems are you solving with the product? What benefits have you realized? Before Pdffiller I would print the document, fill out by hand, scan, then email. Now my documents look more professional without and are less of a hassle.
User in Construction
2020-08-28
I signed up originally to utilise this service. Whilst I did not wish to continue with the service (just wouldnt need it again) I did struggle to cancel the service. I sent an email outlining my issue and got the quickest response back and my account fixed and funds returned. Great service if you do require all the time. Easy to use. Highly recommend.
Bmua
2020-07-25

Secure Your PDFs and Convert to PNG with Ease

Our Lock PDF and Convert PDF to PNG features offer you a simple solution to manage your PDF files effectively. You can now protect sensitive documents and convert them into image format without any hassle.

Key Features

Lock PDF files with a password to enhance security
Convert PDF documents to high-quality PNG images
User-friendly interface for quick navigation
Batch processing to save time with multiple files
Compatible with various operating systems

Potential Use Cases and Benefits

Protect confidential information from unauthorized access
Create image versions of PDF documents for sharing on social media
Preserve important documents as images for easy access and viewing
Efficiently archive documents by converting them to PNG format
Reduce the risk of data loss with added security features

By using our Lock PDF and Convert PDF to PNG features, you can resolve your document management issues effectively. With the easy setup, you can protect your important files and ensure you share only what you intend to. Experience peace of mind as you securely handle your PDFs and convert them into flexible image formats for diverse applications.

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
No matter you're on a Mac, Windows, iPhone, or Android device, you can conveniently upload and convert your PDF document to dozens of formats, as long as you have an internet connection. Step 1. Go to Ease PDF, put your mouse on “PDF Converter”, and select “PDF to PNG”. Step 2.
Converting an Image With Windows Open the image you want to convert into PNG by clicking File > Open. Navigate to your image and then click Open. Once the file is open, click File > Save As. In the next window make sure you have PNG selected from the drop-down list of formats, and then click Save.
Start PDF Converter for Windows 10. Click Next button to continue to specify the start page and end page to convert. Click Next button to check the security option of the PDF file, whether it is encrypted or not. Click Next button, and choose PNG as the output format.
Open PDF. On launching the software, click on the “Open files” button and upload your desired PDF file to the application. Click “To Image” After that, go to the main menu and click on “Convert” and select “To Image” from the convert output options. Convert PDF to Transparent PNG.
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.

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