Question 1

What size is a passport photo?

Accepted Answer

Passport photo sizes vary by country. US passport photos are 2x2 inches (51x51 mm). Most European countries use 35x45 mm. Canada requires 50x70 mm, and India uses 35x35 mm. Select your country in our passport photo maker to get the exact dimensions automatically.

Question 2

How do I make a passport photo online?

Accepted Answer

Select your country and document type, upload your photo, use the zoom and drag controls to position your face within the guidelines, then download a single photo or a print sheet with multiple copies. Our AI detects your face and auto-crops to ICAO standards.

Question 3

Can I take a passport photo with my phone?

Accepted Answer

Yes. Take a photo with your smartphone in a well-lit area against a white background, then upload it to our tool. The AI will crop it to the exact dimensions required for your country. Use a tripod or have someone else take the photo for best results.

Question 4

What background color is required for passport photos?

Accepted Answer

Most countries require a white or off-white background. Our tool defaults to white (#ffffff), which is accepted nearly everywhere. The AI background removal automatically replaces your original background with a compliant white background.

Question 5

What are the US passport photo requirements?

Accepted Answer

US passport photos must be 2x2 inches (600x600 pixels), with a white background, taken within the last 6 months. Full front view of the face, no glasses or hats. Head height should be 1-1.375 inches from chin to top of head. Our tool validates all these requirements automatically.

Question 6

Can I print passport photos at home?

Accepted Answer

Yes. Use our print layout feature to generate a 4x6 inch or A4 sheet with multiple copies. Download and print on glossy photo paper at home or at any print shop. This saves $10-15 compared to photo booth or pharmacy services.

Question 7

Can I make visa photos with this tool?

Accepted Answer

Yes. Select the destination country and choose "Visa" as the document type. Our tool includes specs for 631 document types across 149 countries, including tourist visas, work permits, and national ID cards.

Question 8

How do I merge images?

Accepted Answer

Upload your images by clicking or dragging them to the upload area. Choose horizontal or vertical direction, adjust spacing and background color, then click "Merge & Download". Everything runs in your browser with no upload to servers.

Question 9

Is there a limit to how many images I can merge?

Accepted Answer

There is no hard limit. You can merge multiple images in a single session. For optimal browser performance, we recommend 10-15 images at once. All processing happens locally on your device.

Question 10

Can I merge images both horizontally and vertically?

Accepted Answer

Yes. Our main merger lets you choose horizontal (side by side) or vertical (stacked) direction. We also offer dedicated Horizontal Merge and Vertical Merge tools for focused workflows, plus a Photo Joiner for quick drag-and-drop joining.

Question 11

Can I merge images with different sizes?

Accepted Answer

Yes. The merger handles images of different dimensions automatically. You can set maximum width and height constraints, and images are scaled proportionally to fit. Spacing and background color are fully adjustable.

Question 12

How do I merge images for social media?

Accepted Answer

Visit our "Merge Images For" hub page which has presets for Instagram, Facebook, Twitter/X, LinkedIn, YouTube, and more. Each platform preset sets the correct output dimensions so your merged image fits perfectly.

Question 13

How does the AI background remover work?

Accepted Answer

Our background remover uses a deep learning model trained on millions of images to detect the foreground subject and separate it from the background. It produces a transparent PNG with clean edges — no manual selection needed.

Question 14

Is background removal free?

Accepted Answer

Yes. Remove up to 3 backgrounds per day without an account, or sign up free for 15 per day. No watermarks and no hidden fees. The output is always a full-resolution transparent PNG.

Question 15

How long does background removal take?

Accepted Answer

Most images are processed in 2-5 seconds. Large images may take slightly longer. The AI runs on cloud GPUs for fast, consistent results regardless of image complexity.

Question 16

Can I remove backgrounds from product photos?

Accepted Answer

Absolutely. Product photography is one of the most popular use cases. The AI handles complex edges like hair, fur, transparent objects, and intricate details with high accuracy. Great for e-commerce listings.

Question 17

Can I use the transparent images commercially?

Accepted Answer

Yes. The processed images are yours to use however you want — commercial projects, social media, websites, print materials. No attribution required.

Question 18

What is an image upscaler?

Accepted Answer

An image upscaler increases the resolution and size of an image while maintaining or improving quality. Our tool offers 6 AI models (Real-ESRGAN, AuraSR v2, Recraft Crisp, Clarity, Gemini Flash, Magnific) that intelligently reconstruct detail at 2x or 4x scale.

Question 19

Can I upscale images for free?

Accepted Answer

Basic browser-based upscaling is always free and unlimited. AI-powered upscaling (much higher quality) gives anonymous users 2 free watermarked previews per day. Sign up free to get 1 full AI credit, then purchase more credits or subscribe for $7.99/month.

Question 20

What is the difference between 2x and 4x upscaling?

Accepted Answer

2x doubles your image dimensions (e.g., 500x500 becomes 1000x1000). 4x quadruples them (500x500 becomes 2000x2000). 2x generally produces sharper results, while 4x is better when you need maximum size for printing or large displays.

Question 21

Can I upscale an image without losing quality?

Accepted Answer

Our AI models use super-resolution to reconstruct genuine detail rather than just stretching pixels. For best results, start with the highest quality source image available. 2x upscaling generally produces excellent results on images under 2048px.

Question 22

Which AI upscaling model should I use?

Accepted Answer

Real-ESRGAN is the best all-rounder for photos and illustrations. Recraft Crisp excels at graphics and text. Clarity preserves fine textures. AuraSR v2 is great for faces. Gemini Flash handles diverse content well. Magnific produces the most creative enhancements. Experiment to find the best fit for your image.

Question 23

Can I use upscaled images for printing?

Accepted Answer

Yes. Upscaling is ideal for preparing images for print. A 2x upscale of a 1000x1000 image produces a 2000x2000 result, suitable for high-quality prints up to 6.7x6.7 inches at 300 DPI.

Question 24

What is a photo collage maker?

Accepted Answer

A photo collage maker combines multiple photos into a single image arranged in creative layouts like grids, mosaics, or custom arrangements. Our tool offers 110+ professionally designed templates plus a simple merge mode.

Question 25

How many photos can I put in a collage?

Accepted Answer

Our 110+ templates support 2 to 12 photos. In simple merge mode, you can add unlimited photos. For the best visual results, we recommend 2-12 photos per collage.

Question 26

What is the best collage size for Instagram?

Accepted Answer

For Instagram feed posts, use 1:1 square (1080x1080px) or 4:5 portrait (1080x1350px). For Stories, use 9:16 vertical (1080x1920px). Our templates are optimized for these social media dimensions.

Question 27

What is the difference between templates and simple merge?

Accepted Answer

Templates let you choose a pre-designed layout where photos are placed in specific cells with cover-fit cropping. Simple merge places photos side by side (horizontal) or stacked (vertical) at their original sizes. Templates offer more creative layouts.

Question 28

How does image compression work?

Accepted Answer

The compressor uses your browser's Canvas API to re-encode images at a lower quality setting. This reduces file size while maintaining visual quality. Everything runs locally in your browser — no images are uploaded to any server.

Question 29

Will compressing reduce image quality?

Accepted Answer

At quality settings of 70-85%, the difference is nearly imperceptible to the human eye while reducing file size by 40-70%. Only at very low settings (below 30%) will you notice significant visual degradation.

Question 30

Can I compress multiple images at once?

Accepted Answer

Yes. Drag and drop or select multiple images at once. Each image is compressed individually with the same quality setting, and you can download them all. There is no limit on the number of images per batch.

Question 31

How does the image resizer work?

Accepted Answer

The resizer uses your browser's HTML5 Canvas API to redraw your image at new dimensions. Everything runs locally — your images are never uploaded to any server. Set exact pixel dimensions or choose from social media, print, and document presets.

Question 32

Can I maintain the aspect ratio when resizing?

Accepted Answer

Yes. The aspect ratio lock is enabled by default. When locked, changing the width automatically adjusts the height (and vice versa) to maintain the original proportions. You can unlock it to set custom dimensions freely.

Question 33

What social media presets are available for resizing?

Accepted Answer

We include presets for Instagram (post, story, reel), Facebook (post, cover, profile), Twitter/X, LinkedIn, YouTube (thumbnail, banner), Pinterest, and TikTok. Plus common resolutions (HD, Full HD, 4K), print sizes (A4, Letter, 4x6), and document sizes.

Question 34

How do credits work?

Accepted Answer

Each AI upscale costs 1 credit, regardless of which model you choose. You get 1 free credit when you sign up. Additional credits can be purchased in packs (3 for $1.99, 10 for $4.99, 50 for $14.99, 200 for $39.99) or via the monthly subscription (30 credits for $7.99/month).

Question 35

Do credits expire?

Accepted Answer

Purchased credits never expire — they are yours to use whenever you want. Free signup credits expire after 90 days to encourage you to try them out. Subscription credits roll over to the next month.

Question 36

What is included in the monthly subscription?

Accepted Answer

The $7.99/month plan gives you 30 AI upscale credits refreshed every month, access to all 6 AI models, and you can cancel anytime. Unused credits roll over. This saves 47% compared to buying equivalent credit packs individually.

Question 37

What payment methods do you accept?

Accepted Answer

We accept all major credit and debit cards, Apple Pay, Google Pay, and other popular payment methods. All transactions are processed securely through our payment partner DodoPayments with full encryption.

Question 38

What happens if an AI upscale fails?

Accepted Answer

If an AI upscale fails for any reason, your credit is automatically refunded. You only pay for successful upscales. Check that your source image is under 2048px for best results — very large images may see minimal improvement.

Question 39

What happens to my photos after processing?

Accepted Answer

For client-side tools (merge, collage, resize, compress, profile picture), your images never leave your device — everything runs in the browser. For AI tools (upscaler, background remover), images are sent to our secure server and deleted immediately after processing. We never store, share, or use your images for any other purpose.

Question 40

Which tools process images locally in my browser?

Accepted Answer

Image merging, photo collage maker, profile picture maker, image resizer, image compressor, and meme generator all process 100% in your browser. Your files never leave your device. AI upscaler and background remover use cloud processing for AI inference.

Question 41

Is it safe to use the AI tools?

Accepted Answer

Yes. Images sent for AI processing are transmitted over encrypted HTTPS, processed on secure servers, and deleted immediately after the result is returned. We do not store, log, or use your images for training or any other purpose.

Question 42

Do I need an account to use the tools?

Accepted Answer

No account is needed for most tools. Image merging, collages, resizing, compression, profile pictures, and memes are fully free without signup. Background removal gives 3 free uses per day (15 with a free account). AI upscaling offers free watermarked previews; full downloads require a free account with credits.

Question 43

What image formats are supported?

Accepted Answer

All tools support JPEG, PNG, and WebP for input. Most also accept GIF. Output formats vary by tool: merging and collage offer PNG, JPEG, and WebP; the background remover always outputs transparent PNG; the upscaler outputs high-quality PNG. You can choose your preferred output format in each tool's settings.

Question 44

Do the tools work on mobile devices?

Accepted Answer

Yes. All tools are fully responsive and work on smartphones and tablets. Touch controls are optimized with 44px minimum tap targets. Upload photos directly from your camera roll, edit, and download. Performance depends on your device for client-side processing.

Question 45

Are there any watermarks on the output?

Accepted Answer

No watermarks on any client-side tool output (merge, collage, resize, compress, profile picture, meme). The AI upscaler adds a watermark to free anonymous previews only — sign up and use a credit for the full, watermark-free result.

Question 46

Can I upscale a passport photo?

Accepted Answer

Yes, but it is usually unnecessary. Our passport photo maker outputs at the exact pixel dimensions required by each country (e.g., 600x600 for US passports). If you have a low-resolution source photo, you can upscale it first with our AI upscaler, then use the passport photo maker for cropping and compliance.

Question 47

Can I remove the background from an image before making a collage?

Accepted Answer

Yes. Use the background remover to get a transparent PNG, then upload that image into the collage maker or merger. The transparent background will show the collage background color behind your subject. This works great for product showcases and creative layouts.

Question 48

Can I compress an image after merging?

Accepted Answer

Yes. Download your merged image, then open the Image Compressor and upload it. Adjust the quality slider to find the right balance between file size and visual quality. This is useful for keeping merged images under email or website size limits.

Question 49

Is MergeImages.net really free?

Accepted Answer

Yes. All client-side tools (merging, collage, resize, compress, profile picture, meme generator, passport photo) are 100% free with no limits or watermarks. AI-powered tools (upscaler, background remover) offer generous free tiers. Credits are only needed for full-resolution AI upscaling.

Question 50

Is MergeImages.net available in other languages?

Accepted Answer

Yes. The site is available in 6 languages: English, Spanish, Portuguese, German, French, and Japanese. The language is automatically detected from your browser settings, or you can switch manually using the language selector.

Frequently Asked Questions

Passport Photos

Image Merging

Background Removal

Image Upscaling

Photo Collage

Image Compression

Image Resizing

Pricing & Credits

Privacy & Security

General