Last updated on
Dec 12, 2023
Lock PDF and Add Watermark to PDF for Mobile 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
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 never used the internet to fill in forms and PDFfiller sure is a saver although I hever had any used of this type in the past, Thank you for making us illiterate users show us how to do it
2014-06-17
I love this application. I work extensively with government forms for skilled nursing facilities. So far your program is the best for making the forms look professional and for ease of use!
2018-07-17
My main reasons for using PDFfiller.com is so that I can fill out and sign forms to email; and our customers can fill out and sign our forms more conveniently.
2019-05-13
What do you like best?
I love having the ability to sign and fill in PDFs that are usually hard to make changes to. I like my files to be clean and typed up, instead of me printing off, then writing on and then scanning back in. PDFiller makes the whole process so much easier.
What do you dislike?
I haven't found any downfalls that irritate me.
What problems are you solving with the product? What benefits have you realized?
PDFiller allows me to quickly sign forms and send back.
I love having the ability to sign and fill in PDFs that are usually hard to make changes to. I like my files to be clean and typed up, instead of me printing off, then writing on and then scanning back in. PDFiller makes the whole process so much easier.
What do you dislike?
I haven't found any downfalls that irritate me.
What problems are you solving with the product? What benefits have you realized?
PDFiller allows me to quickly sign forms and send back.
2019-11-05
PDF filler great for all ages.
PDF filler is an easy to use editor. I had no problem downloading the forms I needed to fill in to the program , fill my forms, click done and print (in color). And you get 1 month free trial. Thank you.
2019-06-09
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!
2022-02-02
mostly good. Had trouble one day but it looked like it was site-wide. It was fixed by the next day. Would like to better understand how to capture documents and transfer to other files etc.
2021-10-17
What do you like best?
I like the ability to change fonts and add items on my documents
What do you dislike?
That I have to sign in everytime on my computer
Recommendations to others considering the product:
I love this product and the cost is a great value
What problems are you solving with the product? What benefits have you realized?
It is much neater and professional than hand written documents
2020-11-18
What do you like best?
Easy to use, multiple features to make your PDF needs Easy
What do you dislike?
I would love some color background choices.
Recommendations to others considering the product:
Get This Product! Best PDF you will ever use!
What problems are you solving with the product? What benefits have you realized?
No need to mess with Adobe, PDF Filler is just a great tool and benefits my company by letting us edit quickly and easily
2020-11-10
Lock PDF and Add Watermark to PDF for Mobile
Protect your important documents with our Lock PDF and Add Watermark to PDF feature for mobile. This tool ensures your files stay safe and maintains your brand's identity. You can easily secure sensitive information while enhancing its confidentiality.
Key Features
Lock your PDF with a password for secure access
Add customizable watermarks to protect your content
User-friendly interface for effortless navigation
Compatible with various mobile devices
Quick processing for immediate results
Potential Use Cases and Benefits
Secure financial documents to prevent unauthorized access
Add watermarks to marketing materials to reinforce brand identity
Protect sensitive personal information while sharing
Ensure compliance with data protection regulations
This feature addresses your need for document security. By locking your PDF and adding a watermark, you can confidently share your files without worrying about breaches. Protect your work and maintain your professional image with ease.
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 make a watermark on my Android?
Tap on Photos to choose the image you want to add the watermark to. If you don't immediately see the picture you need, just tap on the Browse Folders option to see all your files. To add a particular text as a watermark, tap on the T at the top-right.
How do I mark a PDF on my phone?
Open the OneDrive for Android app, and open the PDF you want to mark up.
Near the bottom of your screen, tap Markup.
On the Markup toolbar (from left to right: Exit, Undo, Redo, Navigate, Pen, Highlight, Note, Text, and Erase), tap the tool that you want to use.
How do I add a watermark to a secured PDF?
Step 1: Run PDF Watermark Tool and add PDF files to watermark.
Step 2: Enter text to insert as watermark.
Step 3: Select a new location to save the PDF file.
Step 4: Click on add watermark to PDF file.
How do I create a watermark on my phone?
Launch Visual Watermark.
Click Select Images or drag your photos into the app.
Select one or more images you would like to watermark.
Click Next Step.
Choose To add logo.
Edit logo watermark using editing tools.
How do I put a watermark on a PDF on my phone?
loved- PDF Editor. loved is a full-fledged PDF editor that lets you add watermark to PDF documents.
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PDF Utility.
How to Lock PDF and Add Watermark to PDF for Mobile - video instructions
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