Guides

Practical, step-by-step help with the documents, photos and videos people deal with every day — exam and government forms, size limits, QR codes, captions — and the free tools on DocEpic that do the job.

PDF documents

• How to Compress a PDF to 100 KB or 200 KB for Online Forms

  Make a PDF small enough for exam, job and government portals that accept only 100 KB, 200 KB or 500 KB — keeping it readable — with a free online tool that works on phones too.

  Updated 10 November 2026 · 4 min read

• How to Merge PDF Files on Your Phone (Android and iPhone)

  Combine several PDFs — certificates, bills, scanned pages — into one file on your phone, in the order you want, without installing an app. Free and private.

  Updated 10 November 2026 · 3 min read

• How to Convert JPG Photos to a PDF (One File, Right Page Size)

  Turn photos of documents, ID cards and receipts into one neat PDF with A4 pages, the right orientation and margins — free, in your browser, on phone or computer.

  Updated 10 November 2026 · 3 min read

• How to Convert a PDF to Word and Edit It (Without Retyping)

  Turn a PDF into an editable Word document, what to do with scanned PDFs, and when Markdown or OCR is the better choice — free, with files deleted right after conversion.

  Updated 10 November 2026 · 3 min read

• How to Edit, Sign and Fill a PDF Online (Free, No Software)

  Add text, sign a PDF, fill in a PDF form, number the pages or stamp a watermark — in your browser on phone or computer, without Acrobat and without uploading the file.

  Updated 10 November 2026 · 3 min read

• How to Delete, Extract, Rotate and Reorder PDF Pages

  Remove blank or unwanted pages, save only the pages you need, fix sideways scans, trim margins and put pages in order — free, in your browser, with the original quality kept.

  Updated 10 November 2026 · 3 min read

• How to Password Protect a PDF (and Remove a Password You Know)

  Lock a PDF with a password using AES-256 encryption, limit printing and copying, remove a password you know, hide sensitive details for good and check what changed between two versions.

  Updated 10 November 2026 · 3 min read

• How to Make a Scanned PDF Searchable and Copy Its Text (OCR)

  Turn a scanned PDF or photo into text you can search, select and copy — in English, Hindi and other Indian languages — and fix PDFs that won't open or need to be archived.

  Updated 10 November 2026 · 3 min read

• How to Convert Word, Excel and PowerPoint to PDF (and Back)

  Turn DOCX, XLSX and PPTX files into PDFs that look the same everywhere, save a web page as PDF, and convert PDFs back into editable PowerPoint slides or Excel tables — free.

  Updated 10 November 2026 · 2 min read

• How to Convert a PDF to JPG or PNG Images (and Pick the Right Format)

  Save PDF pages as JPG or PNG images at the right resolution for WhatsApp, Instagram or printing, and convert images between JPG, PNG, WebP and SVG — free, in your browser.

  Updated 10 November 2026 · 3 min read

• How to Summarize a Long PDF and Translate It (Free)

  Get the key points of a long report, notice or study material in seconds, and translate a PDF into Hindi or another language as Word, PDF or text — what works where, and how private it is.

  Updated 10 November 2026 · 2 min read

Photos and images

• Exam Photo and Signature Size for SSC, IBPS, UPSC, NEET and JEE (2026)

  Pixel sizes and KB limits for the photo and signature in SSC, IBPS, SBI, UPSC, NEET and JEE application forms, the rules they share, and how to resize yours in a minute for free.

  Updated 10 November 2026 · 6 min read

• How to Reduce Photo Size to 20 KB or 50 KB (Phone or Computer)

  Shrink a photo to exactly 20 KB, 50 KB or any size a form asks for, without making it blurry — and understand the difference between KB and pixels — with a free online tool.

  Updated 10 November 2026 · 3 min read

• How to Make a UPI QR Code for Your Shop (Free, Any UPI App)

  Create a UPI payment QR code for your shop, stall or service with your own UPI ID — with or without a fixed amount — that customers can scan with Google Pay, PhonePe, Paytm or any UPI app.

  Updated 10 November 2026 · 4 min read

• How to Make a Passport Size Photo at Home and Print It

  Make a passport-size photo (35 × 45 mm for India, 2 × 2 inch for US and OCI) from a phone picture, with a white background, and print a full sheet of copies on 4 × 6 photo paper or A4.

  Updated 10 November 2026 · 3 min read

• How to Remove the Background From a Photo (White, Colour or Blur)

  Cut out the background of a photo automatically and replace it with white for ID photos, a colour or backdrop for profile pictures, or a soft blur — plus quick fixes for blurring, filters and watermarks.

  Updated 10 November 2026 · 3 min read

• How to Compress Images Without Losing Quality (Website, WhatsApp, Email)

  Make photos and images smaller for a website, email or WhatsApp while keeping them sharp — which compression level, format and size to choose, and how to remove hidden location data.

  Updated 10 November 2026 · 3 min read

Video and audio

• How to Add Subtitles to a Video for Free (Hindi or English, Reels and YouTube)

  Turn the speech in your video into captions automatically, correct them, style them for Instagram Reels or YouTube Shorts, and add them to the video or download an SRT file — free, no watermark.

  Updated 10 November 2026 · 3 min read

• How to Resize a Video for Instagram Reels and YouTube Shorts (9:16)

  Turn a landscape or square video into a vertical 9:16 video for Reels, Shorts and WhatsApp status — with a blurred background, colour bars or a crop — free and without a watermark.

  Updated 10 November 2026 · 2 min read

• How to Extract Audio From a Video (MP3) and Edit It

  Save the sound of a video as MP3, M4A or WAV, convert between audio formats, cut out the part you need, join recordings and fix the volume — free, in your browser, nothing uploaded.

  Updated 10 November 2026 · 3 min read

• How to Make a Ringtone From Any Song (Android and iPhone)

  Cut the best part of a song into a ringtone with a smooth fade — MP3 for Android or M4R for iPhone — and set it on your phone. Free, in your browser, no app needed.

  Updated 10 November 2026 · 3 min read

• How to Compress a Video for WhatsApp, Email or Upload

  Make a large phone video small enough to send on WhatsApp, attach to an email or upload to a form — which resolution to choose, how to cut it shorter, convert it so it plays everywhere, or make a GIF.

  Updated 10 November 2026 · 3 min read

• How to Add Music, a Watermark and Effects to a Video (Free, No Watermark of Ours)

  Put background music under a video or replace its sound, add your name or logo, join clips, make slow motion or time-lapse and change the voice — free, in your browser, with no app watermark.

  Updated 10 November 2026 · 3 min read

• How to Make a Hindi Voiceover From Text (Free AI Voice, MP3)

  Turn Hindi or English text into a natural AI voice for videos, Reels and presentations, choose male or female voices and speed, and translate a recording into another language with a voiceover.

  Updated 10 November 2026 · 3 min read

Excel and CSV

• How to Clean Excel Data: Remove Duplicates, Spaces and Empty Rows

  Tidy a messy Excel or CSV file in minutes — remove duplicate rows, extra spaces, invisible characters and empty rows, fix letter case, keep only the columns you need and compare two versions.

  Updated 10 November 2026 · 2 min read

• How to Merge, Split and Convert Excel and CSV Files

  Combine many Excel or CSV files into one sheet, split a huge sheet into smaller files, and convert between CSV, Excel and JSON without breaking numbers, dates or leading zeros.

  Updated 10 November 2026 · 2 min read