Last updated on
Sep 20, 2025
Blackout PDF Online on Linux 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
Note: Integration described on this webpage may temporarily not be available.
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Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
Download, export, or share your edited file instantly
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
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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:
Quite honestly I never knew when my subscription ended I found out when it ended,i believe you should make it more of a mgrand exit because i continued using this service way after i should have great service though
2016-10-05
Absolutely By Far the Greatest thing since the Wheel you guys rock i mean your program is the most simplest and helpful thing i have ever come across i mean literally your program by far goes beyond to help even the most non computer literate person like myself thank you so much!
2017-11-02
The products
i have been use it to opening my documents since it take low space
The application are very usefully in opening some documents, and it contained some feature that help to search
the feature use low space and give options to user to allow to views the page or works he or she wants
2020-04-15
Difficult to naviagte
Frustrating... but it may work better on a computer rather than an ipad.
I like that you can create password protected files and templates to sign if there's is sensitive information needing to be shared.
The overall function seem to be helpful, but difficult to use on an ipad for sure! I found it difficult to attempt to build a template as you cannot move the fields you create once you place them. It can make for a sloppy look in your template.
2019-02-02
My experience with PDFfiller has been mostly smooth. It has beneficial features I haven't found with other PDF editors. There are a couple of things that I haven't been able to do but I'm not sure if it's not an option or I just don't know how to do them.
2024-11-13
Their customer support was one of the…
Their customer support was one of the best I’ve seen. Within minutes my problem was resolved. Kara was very polite and professional. Rare you see customer support like this
2022-06-20
It is quick, easy and set up fast for all staff demographics. The web search is not full of misinformation like many others and now we can progress our membership.
2022-01-12
What do you like best?
That the application makes editing documents that can be difficult to edit in certain formats simple.
What do you dislike?
I dislike that there are some formats that this application cannot edit.
What problems are you solving with the product? What benefits have you realized?
Solving the problem of editing time documents that get distorted in Google Docs or Microsoft. The benefit of being able to cut major time from editing projects by utilizing the many features.
2021-02-16
Hands down best ever!
This service is absolutely, hands down, beyond the shadow of a doubt one of the best services that I have ever utilized for document fill-and-sign, templates and basic document editing. I love the service, it's ease of use and especially the price point is unbeatable. I would recommend this service to any of my colleagues in law and especially in the real estate industry.
2020-12-22
How to black out PDF Online on Linux
Follow the step-by-step guide and manage PDF on Ubuntu like a pro.
01
Open your preferred browser and go to the pdfFiller website.
02
From your Dashboard, click the Add New button and upload a doc that you need to black out PDF Online on Linux.
03
Alternatively, place your cursor on the button for adding new documents and select another import option.
04
Your file will open automatically. Edit its content with the options from the toolbar at the top of the screen.
05
Move and delete pages or change their orientation.
06
Add fillable fields to make your sample interactive.
07
Recheck the sample. Make sure you’ve made all the wanted changes.
08
Click Done to finish the editing process and return to the Dashboard.
09
Combine files in the Documents folder.
10
Save your document in the desired format with the Save As option or send it out for signing. You get several options for sending your document.
Blackout PDF Online for Linux: Enhance Your Document Privacy
Blackout PDF Online on Linux offers a streamlined solution for users who need to redact sensitive information from their PDF documents. This tool ensures your data remains private while providing an efficient way to prepare files for sharing or storage.
Key Features
Easy-to-use interface for quick blanking of content
Support for various PDF formats and sizes
Ability to download and share redacted files seamlessly
Options to customize the blackout area
Secure handling of documents to protect your information
Potential Use Cases and Benefits
Preparing legal documents by removing confidential information
Redacting financial records before sharing with third parties
Editing personal data in resumes or portfolios
Protecting sensitive data in research papers
Ensuring privacy in correspondence before publishing online
With Blackout PDF Online on Linux, you can tackle the challenge of privacy with confidence. This tool allows you to quickly and securely remove sensitive information from your PDFs, so you can share them without worry. Whether you are a professional, a student, or anyone concerned about data security, this solution meets your needs effectively.
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 black out text in a PDF Linux?
Re: Redact PDFs Then right click on the highlighted section again and select Annotation Properties. Then click on the color selection to open the color picker window and choose black. Close the color picker window and select Apply in the Annotations Properties window.
How do I black out a PDF?
Simply open the PDF in the Redact PDF tool, mark text or entire pages you want to black out, and once done click on “Redact All”. Xodo ensures the redacted content remains permanently removed, making it a reliable tool for sensitive data removal in PDFs.
How do I black out text in a PDF in Ubuntu?
Click Add or Edit annotations > Choose Add shapes in the upper-right corner > Select a darker color from the Change Color drop-down menu to fill the shape > Use the mouse to swipe and black out the text in the PDF.
How do you censor a PDF online?
To redact PDF text or images online, upload your PDF document using 's uploader. Choose the 'Blackout' button in the 'Tools' tab. You can drag the cursor to redact any text or image in your document. After redacting the content, you can click the 'Text' button in the 'Edit' tab and add text in your PDF.
How do I black out text in a PDF without redacting it?
Step # 3: Highlight the text you want to black out. Step # 4: Right-click on the highlighted text and select "Properties" from the dropdown menu. Step # 5: In the Properties window, click on the "Fill" tab. Step # 6: Choose the color you want to use to black out the text.
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