Can I edit PDF text online without Adobe Acrobat?

Yes. Plainscan's free tier lets you add text overlays, annotations, highlights, and signatures without Adobe Acrobat. Plainscan Pro lets you edit existing text inside the PDF, correct typos, and update content within the original text layer — all without Adobe.

Is it safe to upload a PDF to an online editor?

Plainscan uses AES-256 encryption for all uploaded files and TLS 1.3 for all data in transit. Your documents are permanently deleted within 24 hours and are never sold or shared. Plainscan is GDPR compliant and never analyses your document content for advertising.

Does Plainscan add watermarks to free PDF edits?

No. Plainscan never adds watermarks to your edited PDF, even on the free plan. This is different from competitors like Smallpdf, which watermarks free-tier output. Plainscan free gives you full editing with no watermarks and no daily limits.

How do I sign a PDF online for free?

Open your PDF in Plainscan and click the Signature tool. Draw your signature with your mouse or finger, type it in a handwriting font, or upload a photo of your signature. Place it on the document, download the signed PDF — free, no watermarks.

What is the difference between Plainscan Free and Pro?

Plainscan Free includes all core editing tools (annotate, add text, highlight, sign, fill forms, redact) with no watermarks, no daily limits — with in-app ads. Plainscan Pro adds AI editing, direct text editing, batch processing, and removes all ads.

Can I fill out a PDF form online for free?

Yes. Upload your PDF form to Plainscan and interactive fields become clickable. For PDFs without interactive fields, use the Add Text tool to click on any blank area and type. Download your completed form — free, no watermarks, no daily limits.

How do I redact sensitive information in a PDF?

Upload your PDF to Plainscan, select the Redact tool, then click and drag over the content to hide. The area is covered with a permanent solid black redaction bar that cannot be recovered. Download the permanently redacted PDF.

Does Plainscan work on iPhone and Android?

Yes. Plainscan is fully browser-based and works on any modern mobile browser on iOS and Android. No app download required — open plainscan.com/tools/pdf-edit on your phone, upload your PDF, edit, and download.

How long does Plainscan store my uploaded PDF?

Plainscan automatically and permanently deletes your uploaded PDF within 24 hours of upload. No manual deletion required. We do not retain copies or backups of your document content after deletion.

Is Plainscan GDPR compliant?

Yes. Plainscan is fully GDPR compliant. We collect only minimum required data, never sell user data, automatically delete all files within 24 hours, and provide full data access and deletion rights to all users.

What is Plainscan's AI PDF editor?

Plainscan's AI assistant (available to Pro subscribers) can summarise documents, extract key data, rewrite paragraphs in plain English, translate content, and answer questions about your document. Processing runs within Plainscan's secure servers — documents are never sent to external AI services.

How do I highlight text in a PDF online?

Upload your PDF to Plainscan, select the Highlight tool, then click and drag over text. Choose yellow, green, blue, pink, or a custom colour. The highlight is applied as a true PDF annotation. Download your highlighted PDF — free, no watermarks.

How do I add text to a PDF online?

Upload your PDF to Plainscan. Click the Add Text tool (T icon), then click anywhere on the page. A text box appears — type your text, choose font, size, and colour, then drag to position. Download to save your additions permanently.

Edit PDF Online — Add Text, Images & More Free

Professional PDF editor for adding text, images, and annotations securely in the cloud. Access your documents from anywhere with AES-256 encryption and private storage.

Add Text

Custom typography

Add Images

Vector imaging

Add Shapes

Rects & circles

Draw

Freehand art

Annotate

Markup content

Whiteout

Redact text

AES-256 Encryption

10k+ Monthly Users

Auto-delete in 24h

No Watermarks

The Professional Way to Edit PDFs Online

Plainscan provides a powerful, secure, and completely free PDF editor designed for professionals, students, and businesses. Unlike traditional editors that require expensive licenses, our cloud-based platform allows you to modify text, annotate documents, and insert images with industry-standard precision—all within your web browser.

Powerful PDF Editing Features

Everything you need to modify your documents with professional-grade tools.

Add & Format Text

Insert new text overlays onto any PDF page. Choose from multiple fonts, adjust sizes, and customize colors to perfectly match your document's style.

Images & Branding

Upload your company logo, signature images, or photos. Resize and position them with pixel-perfect accuracy anywhere in your PDF.

Advanced Annotations

Highlight critical text, draw freehand notes, or add geometric shapes. Perfect for reviewing contracts or marking up architectural plans.

How to Edit a PDF for Free

Follow these three simple steps to modify your PDF document online.

Log in and Upload

Customize Content

Use the toolbar to add text, insert images, or draw shapes. You can rotate, move, and layer objects as needed.

Export and Download

Click 'Export PDF' to process your changes. Your edited document is saved to your cloud storage and ready for instant download.

Plainscan vs. Other PDF Editors

Why thousands are switching to our secure, cloud-based platform.

Feature	Plainscan	iLovePDF	Smallpdf	Adobe Online
Free PDF Editing	YES	YES	LIMITED	LIMITED
No Watermarks	YES	YES	PRO ONLY	PRO ONLY
AES-256 Encryption	YES	Standard	Standard	YES
Cloud Save (24h)	YES	NO	NO	YES

Tips for Professional PDF Editing

Use High-Fidelity Rendering

Our editor uses high-quality rasterization for all annotations, ensuring your added text and shapes stay sharp regardless of the PDF scale.

Format for Impact

Use the text size and color settings to highlight critical information or match the branding of the existing document.

Annotation Layers

You can layer shapes and text to create professional-looking callouts or redacted sections for sensitive data.

Secure Your Documents

All edits are processed in an encrypted cloud environment. Your original file remains untouched until you export the final version.

Who is Plainscan PDF Editor For?

Business & Legal

Fill out contracts, add company stamps, and sign legal agreements with total confidence in your data privacy and security.

Students & Educators

Annotate research papers, add notes to lecture slides, and organize your study guides in one centralized cloud account.

HR & Remote Teams

Update employee handbooks, fill out onboarding forms, and share edited documents securely with team members.

Freelancers

Create professional invoices, update portfolios, and send signed project proposals to clients without needing Adobe.

Frequently Asked Questions

Common questions about our professional PDF editing tool.

How do I edit a PDF online for free?

Upload your document to Plainscan's PDF editor. Use the toolbar to add text, insert images, draw freehand, or annotate pages. Once finished, click 'Export PDF' to download your file instantly without watermarks.

Can I edit PDF text without Adobe Acrobat?

Yes. Plainscan provides a professional, cloud-based alternative to Adobe that allows you to add and format text, highlight, and redact content entirely within your browser.

Is it safe to edit sensitive PDFs online?

Absolutely. Plainscan uses AES-256 encryption for all file transfers and storage. Your documents are processed in a secure environment and are only accessible through your private account.

How do I add an image to a PDF?

Click the 'Image' icon in the toolbar, select your file (JPG or PNG), and it will be inserted into the PDF. You can then resize and move it to any position on the page.

Can I highlight text in a PDF for free?

Yes. Use the 'Highlight' tool in the editor. Simply click and drag over the text area you wish to mark. You can adjust the opacity and color of your highlights.

How do I sign a PDF online?

You can either use the 'Draw' tool to create a freehand signature or upload a transparent PNG image of your signature using the image insertion tool.

Does Plainscan add a watermark to edited PDFs?

No. Unlike many other free editors, Plainscan provides watermark-free exports even on our free tier, ensuring your documents look professional.

Can I edit a scanned PDF online?

Yes, you can add text and shapes over scanned content. For modifying the existing text of a scan, we recommend using our OCR tool first to make the text selectable.

What is the best free PDF editor with no watermark?

Plainscan is widely considered one of the best free PDF editors because it offers professional-grade tools, secure cloud storage, and zero watermarks on all exports.

How do I reverse page order in the PDF editor?

While in the editor, you can use the sidebar to navigate pages. To reorder pages, we recommend using our dedicated 'Reorder PDF' tool for the most efficient experience.

Is there a file size limit for editing PDFs?

Plainscan supports files up to 50MB for editing. This covers the vast majority of legal, academic, and business documents.

How do I redact text in a PDF online?

Use the 'Whiteout' tool to cover sensitive information with a white or custom-colored rectangle, effectively redacting the content before you export the document.