Stay mobile Highlight PDF on OPPO 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

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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:
It is easy to work with. The best for adding content to PDF files whether it is words or photos. This is my #1 go to for files. I am in real estate and this is the best product
Anonymous Customer
2016-09-24
So far works as advertised! professional version should include like a few business features to use like 10 times a week etc. That way I would give it 5 stars!
Henry C
2017-05-08
Simple and versatile. Since it is new "technology" for me, I must use it with some guidance to understand all its utility, so the tutorials that are included will be handy without having to go to school to learn it.
Michael M
2018-04-22
What do you like best?
I like the fact that it is a Swiss Army knife type tool that can do editing, signatures, electronic contract signing all in one easy to use package! I use it in several of my small businesses. It is much better in my estimation than the Adobe products......
What do you dislike?
I have not experienced any current issues.
Recommendations to others considering the product:
Get a subscription
What problems are you solving with the product? What benefits have you realized?
I used to need multiple subscriptions with Adobe and Docusign, now I just need one package - PDFFiller!
Niels Andersen
2019-05-28
What do you like best?
I am able to take a pdf file and change to a jpeg very easily. This allows me to change pdf file so it can be put on FaceBook. I also use it to make corrections instantly when it will take a day or two to get someone else to send it. I simply erase the incorrect data and type in the correct.
What do you dislike?
I have found that the program is not intuitive and there is a fairly large learning curve. I still don't know all the functionality, but what I know it will do make it worth it to me.
Recommendations to others considering the product:
Good program and a great price. Well worth it!!
What problems are you solving with the product? What benefits have you realized?
Changing pdf to jpeg to put on Facebook and correcting documents instantly
User in Insurance
2019-10-07
I needed to create new documents when… I needed to create new documents when my original templates had disappeared because I moved and my email locked me out. PDF Filler came to the rescue and made it possible for me to create all new documents and templates and I was back in business.
Dale R.
2020-01-29
I found this site to be helpful, but . . . I found this site to be helpful. A great time saver on changing documents. I would have saved more time, if I knew ahead of time, that the scanned in pdf, that I edited, would not be able to convert to a word document.
Dawn Meinelt
2021-06-02
Free not so Free Easy to use and alter forms to fit my needs. Was disappointed that it seemed to be free until you get to the end and you have to pay. Thankfully there was the option of the 30 day free trial.
K. Forrester
2021-01-26
One and Done PDFfiller is a one and done experience. Sign up one time and that's all. No gimics - no "add-ons" - and you're able to edit your PDF's share them and send them wherever you wants. As easy as that!
Kim
2025-01-19

Highlight PDF on OPPO without limits

Dealing with document management routine on your computer is a rather unsophisticated task, however, when you need to Highlight PDF on OPPO, you can bump into some issues. It’s not unusual to find some mobile software underdeveloped or just laggy.

pdfFiller is the leader in online document management, which doesn't mean it’s challenging to use. Highlight PDF on OPPO and much more:

01
Add new objects. Insert texts, crosses, checkmarks, images, text boxes, or simply draw on a document
02
Convert files. Save your records as files in PDF, Word, Excel, or PowerPoint formats
03
Cover sensitive data. Use the Blackout option to hide delicate information that shouldn’t be spread to third parties
04
eSign documents. Create a legally-binding signature and send a form for signing in seconds
05
Request additional authentication. Ask recipients to confirm their identity by taking a photo or linking social media profiles
06
Export content. Share samples via links, emails, messengers, or fax
07
Simplify collaboration. Highlight content or add comments for your colleagues

If you jump into pdfFiller's functionality, you can actually explore even more helpful tools and make on-the-go document management much more reliable and uncomplicated. Consider using it to avoid wasting your energy by carrying your laptop all the way around. Get everything you need for coping with PDFs. Register now!

Stay Mobile Highlight PDF on OPPO: Your Document Companion

The Stay Mobile Highlight PDF feature on OPPO devices enhances your document management. This tool allows you to interact with your PDFs effectively, making it easier to keep your important information organized.

Key Features

Highlight important text easily
Add notes and comments directly on the PDF
Access PDFs anytime, anywhere on your OPPO device
Share highlighted documents seamlessly
Organize your PDFs for later reference

Potential Use Cases and Benefits

Students can highlight study materials for quick reviews
Professionals can annotate contracts or reports for better clarity
Researchers can mark essential information for ongoing projects
Anyone can share important notes with colleagues effortlessly

The Stay Mobile Highlight PDF feature solves your document woes by making it simple to focus on key information within any PDF. You can keep your thoughts organized, share insights with others, and ensure you never overlook crucial details. Make your ORPO device a powerful tool for work or study.

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
To do this: Open the file in Preview on an Android phone. Tap on the annotations icon at the bottom of the preview screen to open the annotations toolbar. ... Next, select the highlight text tool. Tap and drag on a section of text within the file itself to highlight it.
PDF Max - The #1 PDF Reader! PDF Max is another reliable app for annotation, reading, or editing your PDF file documents straight from your Android devices. It lets you to make the documents with handwriting and highlights, insert stamps and text, sign and even edit the PDF pages.
Tap the Navigate icon and then scroll up, down, left, or right to navigate your way through the PDF to the place where you want to make your markups. Tap and hold the Pen icon to select either the Pen or Highlighter option. ... To accent text or images, tap and hold the Highlight icon.
To do this: Open the file in Preview on an Android phone. Tap on the annotations icon at the bottom of the preview screen to open the annotations toolbar. ... Next, select the highlight text tool. Tap and drag on a section of text within the file itself to highlight it.

#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