How to Convert PNG To PDF? Top Tools Compared

PNG to PDF conversion is simple but with so many tools limitations, it gets frustrating for me. You may discover tools that distort the orientation of your images, inconsistent page sizes, missing margin options, no merge capability, limited batch processing, and converters that require sign-ups or limit usage. Even worse, several of these “free” PNG to PDF converters bury essential features behind paywalls.

This guide explains the best available options and compares them side by side so that you can choose one that actually works, without wasting any time.

So let’s begin the journey of discovering the best ways to convert PNG to PDF.

What have we tested? 

To evaluate differences in tools for the PNG to PDF converter online, we tested them using the following criteria:

1. Speed – How fast the tool converts and give results
2. Ease of Use – Is it easy or not? The interface and number of steps.
3. Key Features – Support for portrait & landscape orientation, page sizes like fit-to-image, A4 & US Letter, margin settings, combine-images, OCR vs. no-OCR, batch conversion.
4. Accuracy / Quality – Clarity of image in PDF, preservation of resolution, correctness of OCR (if applicable).
5. Pricing & Limitations – The tool is free or it has some limitations such as usage caps, need for signup, ads, or watermarks.

In addition to the core criteria, I also tested each tool for:

• How well they manage multiple PNGs in a single batch.
• Speed and stability with both small images and large files (20–40MB).
• Quality when converting images containing text, graphics, or detailed elements.

Convert PNG to PDF: We Tested 5 Different Tools 

When I googled convert PNG to PDF, i saw a bundle of top notch tools that offers all merging and converting features. But most tools hide essential features behind paywalls, limit batch conversions, or restrict advanced functions like OCR. Take a look at below comparison of five popular PNG to PDF tools. 

•  Adobe Acrobat Online 

I opened Adobe online PNG to PDF converter thinking it would be a pretty quick job. I have uploaded my PNG without any issue. It converted without problems, but the moment I tried to download the PDF, Adobe asked me to “sign up to continue.” You can convert the file, but you actually cannot get your PDF unless you create an account. 

Strengths:

• High-quality output
• Reliable OCR (paid)
• Strong editing options (paid)

Weaknesses:

• OCR locked behind subscription
• Limited batch control in free version
• Page size, margins, and layout options restricted
• Requires Adobe account login

Pricing:

• Adobe Acrobat online is free but, Acrobat Pro starts at $19.99/month

Verdict: 

Adobe’s PNG to PDF converter does an excellent job, but locking the download behind a required signup makes the “free” experience feel pretty pointless. Great quality, but if you can’t access your own file without an account, it’s not practical for real use.

• iLovePDF2.com

Honestly, after trying a bunch of those “free” converters that hit you with paywalls, i Love PDF 2 felt like a total game-changer. It lets me do everything like merge, split, compress, convert, rotate, even unlock and add watermarks without paying a dime. No sign-ups, no weird limits, no upgrade to continue nonsense. I just click the tool I need and boom, it’s done. Super simple, super clean. It’s no less than a premium conversion experience, the best PNG to PDF converter free of charge.

Unique PNG to PDF Features (100% Free):

• Select Page Orientation: Portrait or Landscape for clean, professional layouts.
• Page Size Options: Fit to image, A4, or US Letter (perfect for office printing).
• Margin Options: No margin, small, or big – ensuring visual balance.
• Combine Images: Merge multiple PNGs into a single & organized PDF.
• OCR PDF: Create fully searchable PDFs from images.
• No-OCR PDF: Fast, standard conversion when OCR is not needed.
• Batch Conversion: Convert multiple PNGs at once – without restrictions. 

Strengths:

• Completely free – no subscription, no sign-up, no limits
  • Page Size Options – Fit to image, A4, or US Letter for perfect formatting
  • No-OCR Mode – quick, clean conversion when OCR isn’t needed
  • Fast Processing – instant uploads and rapid conversions
  • Additional Free Tools – merge, split, compress, rotate, unlock, watermark & more

Weaknesses:

• No Android and IOS App
• No Api’s for Corporates

Pricing:

• 100% Free – unlimited use with all premium features included

Verdict:

iLovePDF2 is the best PNG to PDF converter out there – hands down: completely free, with no sign-ups or limits. It gives you full control over orientation, margins, page size, OCR, and unlimited batch conversions, delivering a true premium experience. It beats every other tool on the market even without mobile apps or API access. 

To demonstrate how all these features work in real time, here is a full YouTube tutorial you can watch:

• Smallpdf

Yeah, Smallpdf converted my PNG to a PDF in a couple of seconds, super fast. But the quality wasn’t great at all, kinda blurry. It does support a wide variety of document types such as Word, Excel, PowerPoint, JPG, PNG, TIFF, and many more, but honestly, speed is nothing when the final output doesn’t look sharp.

Strengths:

• Clean UI
• Cloud-based processing
• Basic conversions

Weaknesses:

• Only 2 tasks per day unless upgraded
• OCR available only with Pro
• No margin settings
• Limited page orientation control
• Batch conversion requires paid plan

Pricing:

• Free Trial for 1 month 
• Pro – $12/month
• Team USD 10 /month per seat

Verdict: 

Smallpdf is quick, easy to use, and the results are blurry, which, along with the strict daily limits, makes it hard to rely on for real work. It’s great for quick, simple tasks, but anything more serious pretty much pushes you toward the paid plan.

• PDF Candy 

PDF Candy has a lot of tools, but most of the good stuff sits behind a paywall. It wouldn’t let me upload PNF images directly from my device, only through Dropbox or Google Drive. Conversions went okay for simpler files, but image-heavy documents were poorly formatted.  

Strengths:

• Desktop and online version
• Smooth workflow

Weaknesses:

• Requires account after few conversions
• OCR locked behind paid tier
• Batch features limited
• No margin or page size customization for PNG to PDF
• Speed throttles for free users

Pricing:

• Free Version with limited access 
• Desktop + Web Yearly $4/month
• Web Monthly $6/month

Verdict: 

PDF Candy is convenient for light, simple tasks, but the paywalls, upload limitations, and messy formatting on image-heavy files make it unreliable for serious work. It’s fine for quick basic conversions, 

• Soda PDF 

Soda PDF is fine for super basic stuff you’re searching for a quick tool to change png to pdf, but its free version gives you literally zero customization. Once I actually hit the option to convert, it didn’t even let me try anything; it sent me straight to paid subscription plans. The funny part? When I tested it on a paid account, the moment I uploaded a heavier file, like 30MB or more, the whole thing slowed down big time. 

Strengths:

• Good for office workflows
• Offers OCR – paid
• Desktop + online versions

Weaknesses:

• OCR locked behind paid plan
• No margin adjustments
• Limited page orientation options
• Batch conversion limited unless on premium
• Requires account sign-in

Pricing:

1 month standard 9.16

• Monthly standard $9/month
• Monthly Pro $12/month
• Monthly Business $20/month

Verdict: 

The instant push to paid plans, and the slow working with bigger files make relying on it hard. It’s decent for light office use, but not practical for anyone needing consistent heavy-duty PNG to PDF conversions.

Pricing and Speed Comparison Table 

Here’s a breakdown of 5 paid (or paid-feature) tools compared to iLovePDF2, focused on converting PNG to PDF. I have highlight their paid costs, typical performance trade-offs, and how they stack up against your tool’s strengths.

My Recommendations to All 5 Tested Tools 

Every tool I tested has their own pros and cons. But, i think that each of them should work on some suggestions: 

 Adobe Acrobat Online 

• Allow downloads without forced account signup, so the “free” converter actually feels usable.
• Add basic layout controls like margins, page size, and orientation in the free version.
• Provide limited batch conversions, even 3 files at a time, in order to make it practical for everyday users.                                                                                             

Smallpdf

• Improve output quality so fast conversions don’t come out blurry or pixelated.
• Increase the free task limit to more than two per day for casual users.
• Add basic customization options such as margins and orientation control to make PNG to PDF more flexible.                                                                                      

PDF Candy

• Allow direct device uploads instead of forcing Dropbox/Google Drive for PNG to PDF.
• Improve the stability of formatting for image-heavy and complex PDFs.
• Provide basic features like margins/page size in the free version; do not lock all the basics behind a paywall.

Soda PDF

• Offer some free customization margins, page size, orientation before funneling users directly to paid plans.
• Improvement in performance for big-sized files – uploads above 30MB shouldn’t significantly slow down much.
• Reduce the immediate paywall pressure and allow at least a trial conversion before requiring a subscription.                                                              

iLovePDF2.com

• Introduce apps on Android and iOS for easier mobile usage.
• Add API access for businesses needing automated or bulk PDF tasks.
• Advanced, pro-level options may include workflow automation or custom templates for power users. 

My Closing Take 

The point is, if you want full control over stuff like orientation, page size, margins, OCR, or even merging multiple images, iLovePDF2.com is the only service that gives you the whole package without throwing a paywall in your face. You know all those features the other tools hide behind subscriptions? iLovePDF2 just hands them over for free.

For anyone who converts PNG to PDF daily, especially in big batches, iLovePDF2 is hands-down the best choice. Fast, unlimited, and it doesn’t try to squeeze money out of you for basic functions.