{"id":620582,"date":"2026-11-09T09:55:36","date_gmt":"2026-11-09T02:55:36","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=620582"},"modified":"2026-11-09T09:55:43","modified_gmt":"2026-11-09T02:55:43","slug":"xoa-nen-chu-ky","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/xoa-nen-chu-ky\/","title":{"rendered":"X\u00f3a n\u1ec1n ch\u1eef k\u00fd: c\u00e1ch l\u00e0m trong Word, online v\u00e0 tr\u00ean \u0111i\u1ec7n tho\u1ea1i"},"content":{"rendered":"

\u0110\u1ec3 x\u00f3a n\u1ec1n ch\u1eef k\u00fd, b\u1ea1n ch\u1ee5p ch\u1eef k\u00fd tr\u00ean gi\u1ea5y tr\u1eafng r\u1ed3i d\u00f9ng ch\u1ee9c n\u0103ng “\u0110\u1eb7t m\u00e0u trong su\u1ed1t” ho\u1eb7c “Lo\u1ea1i b\u1ecf n\u1ec1n” c\u00f3 s\u1eb5n trong Word, Excel, PowerPoint, ho\u1eb7c d\u00f9ng c\u00f4ng c\u1ee5 x\u00f3a n\u1ec1n online nh\u01b0 remove.bg, Canva, sau \u0111\u00f3 l\u01b0u \u1ea3nh d\u1ea1ng PNG \u0111\u1ec3 gi\u1eef n\u1ec1n trong su\u1ed1t. B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn t\u1eebng c\u00e1ch tr\u00ean m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i, c\u00e1ch ch\u00e8n ch\u1eef k\u00fd v\u00e0o PDF v\u00e0 nh\u1eefng l\u01b0u \u00fd ph\u00e1p l\u00fd, b\u1ea3o m\u1eadt khi d\u00f9ng ch\u1eef k\u00fd \u1ea3nh.<\/p>\n

Chu\u1ea9n b\u1ecb \u1ea3nh ch\u1eef k\u00fd th\u1ebf n\u00e0o \u0111\u1ec3 x\u00f3a n\u1ec1n \u0111\u1eb9p?<\/h2>\n

\u1ea2nh ch\u1eef k\u00fd c\u00e0ng t\u01b0\u01a1ng ph\u1ea3n, x\u00f3a n\u1ec1n c\u00e0ng s\u1ea1ch: h\u00e3y k\u00fd b\u1eb1ng b\u00fat m\u1ef1c \u0111en ho\u1eb7c xanh \u0111\u1eadm tr\u00ean gi\u1ea5y tr\u1eafng tr\u01a1n, ch\u1ee5p th\u1eb3ng g\u00f3c d\u01b0\u1edbi \u00e1nh s\u00e1ng \u0111\u1ec1u, kh\u00f4ng \u0111\u1ec3 b\u00f3ng tay hay b\u00f3ng \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed5 l\u00ean gi\u1ea5y.<\/p>\n

    \n
  1. K\u00fd 3\u20134 l\u1ea7n tr\u00ean gi\u1ea5y A4 tr\u1eafng, ch\u1ecdn ch\u1eef k\u00fd \u0111\u1eb9p nh\u1ea5t.<\/li>\n
  2. \u0110\u1eb7t gi\u1ea5y \u1edf n\u01a1i s\u00e1ng, t\u1eaft \u0111\u00e8n flash \u0111\u1ec3 tr\u00e1nh l\u00f3a.<\/li>\n
  3. Ch\u1ee5p th\u1eb3ng t\u1eeb tr\u00ean xu\u1ed1ng, ch\u1eef k\u00fd chi\u1ebfm ph\u1ea7n l\u1edbn khung h\u00ecnh.<\/li>\n
  4. C\u1eaft \u1ea3nh s\u00e1t ch\u1eef k\u00fd, t\u0103ng \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n nh\u1eb9 n\u1ebfu n\u1ec1n gi\u1ea5y h\u01a1i x\u00e1m.<\/li>\n<\/ol>\n

    \u1ea2nh c\u00f3 n\u1ec1n gi\u1ea5y ng\u1ea3 v\u00e0ng, nhi\u1ec1u v\u1ebft b\u1ea9n ho\u1eb7c ch\u1eef k\u00fd b\u1eb1ng b\u00fat bi n\u00e9t m\u1ea3nh s\u1ebd kh\u00f3 t\u00e1ch n\u1ec1n v\u00e0 d\u1ec5 b\u1ecb r\u0103ng c\u01b0a.<\/p>\n

    \"xoa-nen-chu-ky-1\"<\/p>\n

    C\u00e1ch x\u00f3a n\u1ec1n ch\u1eef k\u00fd trong Word, Excel, PowerPoint<\/h2>\n

    Trong Word, Excel v\u00e0 PowerPoint, b\u1ea1n ch\u00e8n \u1ea3nh ch\u1eef k\u00fd, ch\u1ecdn \u1ea3nh, v\u00e0o th\u1ebb \u0110\u1ecbnh d\u1ea1ng \u1ea3nh (Picture Format), ch\u1ecdn M\u00e0u (Color) \u2192 \u0110\u1eb7t m\u00e0u trong su\u1ed1t (Set Transparent Color) r\u1ed3i b\u1ea5m v\u00e0o v\u00f9ng n\u1ec1n tr\u1eafng; n\u1ec1n s\u1ebd bi\u1ebfn m\u1ea5t, ch\u1ec9 gi\u1eef n\u00e9t ch\u1eef k\u00fd.<\/p>\n

      \n
    1. V\u00e0o Ch\u00e8n (Insert) \u2192 \u1ea2nh (Pictures), ch\u1ecdn \u1ea3nh ch\u1eef k\u00fd.<\/li>\n
    2. B\u1ea5m ch\u1ecdn \u1ea3nh, m\u1edf th\u1ebb \u0110\u1ecbnh d\u1ea1ng \u1ea3nh (Picture Format).<\/li>\n
    3. Ch\u1ecdn M\u00e0u (Color) \u2192 \u0110\u1eb7t m\u00e0u trong su\u1ed1t (Set Transparent Color).<\/li>\n
    4. B\u1ea5m v\u00e0o v\u00f9ng n\u1ec1n tr\u1eafng c\u1ee7a \u1ea3nh. N\u1ebfu c\u00f2n v\u1ec7t x\u00e1m, d\u00f9ng Lo\u1ea1i b\u1ecf n\u1ec1n (Remove Background) v\u00e0 \u0111\u00e1nh d\u1ea5u v\u00f9ng c\u1ea7n gi\u1eef.<\/li>\n
    5. Ch\u1ec9nh B\u1ecdc v\u0103n b\u1ea3n (Wrap Text) th\u00e0nh Ph\u00eda tr\u01b0\u1edbc v\u0103n b\u1ea3n (In Front of Text) \u0111\u1ec3 \u0111\u1eb7t ch\u1eef k\u00fd l\u00ean d\u00f2ng k\u00fd t\u00ean.<\/li>\n<\/ol>\n

      Mu\u1ed1n d\u00f9ng l\u1ea1i nhi\u1ec1u l\u1ea7n, nh\u1ea5p chu\u1ed9t ph\u1ea3i v\u00e0o \u1ea3nh \u2192 L\u01b0u th\u00e0nh \u1ea3nh (Save as Picture), ch\u1ecdn \u0111\u1ecbnh d\u1ea1ng PNG \u0111\u1ec3 gi\u1eef n\u1ec1n trong su\u1ed1t.<\/p>\n

      \"xoa-nen-chu-ky-2\"<\/p>\n

      C\u00e1ch x\u00f3a n\u1ec1n ch\u1eef k\u00fd online<\/h2>\n

      C\u00e1c c\u00f4ng c\u1ee5 x\u00f3a n\u1ec1n online nh\u01b0 remove.bg, Canva, Fotor, iLoveIMG cho ph\u00e9p t\u1ea3i \u1ea3nh ch\u1eef k\u00fd l\u00ean v\u00e0 nh\u1eadn l\u1ea1i \u1ea3nh n\u1ec1n trong su\u1ed1t sau v\u00e0i gi\u00e2y. C\u00e1ch n\u00e0y nhanh nh\u01b0ng b\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc v\u00ec ph\u1ea3i t\u1ea3i ch\u1eef k\u00fd l\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u00ean th\u1ee9 ba.<\/p>\n

        \n
      1. M\u1edf c\u00f4ng c\u1ee5 x\u00f3a n\u1ec1n, ch\u1ecdn t\u1ea3i \u1ea3nh ch\u1eef k\u00fd l\u00ean.<\/li>\n
      2. Ch\u1edd c\u00f4ng c\u1ee5 t\u1ef1 t\u00e1ch n\u1ec1n, ph\u00f3ng to \u0111\u1ec3 ki\u1ec3m tra n\u00e9t m\u1ea3nh c\u00f3 b\u1ecb m\u1ea5t kh\u00f4ng.<\/li>\n
      3. D\u00f9ng c\u1ecd kh\u00f4i ph\u1ee5c ho\u1eb7c x\u00f3a (n\u1ebfu c\u00f3) \u0111\u1ec3 s\u1eeda ch\u1ed7 c\u00f2n s\u00f3t.<\/li>\n
      4. T\u1ea3i v\u1ec1 \u0111\u1ecbnh d\u1ea1ng PNG. M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 ch\u1ec9 cho t\u1ea3i b\u1ea3n \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p mi\u1ec5n ph\u00ed, b\u1ea3n ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ea7n t\u00e0i kho\u1ea3n tr\u1ea3 ph\u00ed.<\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n
        C\u00e1ch l\u00e0m<\/th>\n\u01afu \u0111i\u1ec3m<\/th>\nH\u1ea1n ch\u1ebf<\/th>\n<\/tr>\n<\/thead>\n
        Word, Excel, PowerPoint<\/td>\nKh\u00f4ng c\u1ea7n m\u1ea1ng, kh\u00f4ng t\u1ea3i ch\u1eef k\u00fd l\u00ean web<\/td>\nN\u1ec1n x\u00e1m, b\u1ea9n kh\u00f3 x\u00f3a s\u1ea1ch b\u1eb1ng m\u1ed9t l\u1ea7n b\u1ea5m<\/td>\n<\/tr>\n
        C\u00f4ng c\u1ee5 online<\/td>\nNhanh, t\u00e1ch n\u00e9t m\u1ea3nh kh\u00e1 t\u1ed1t<\/td>\nPh\u1ea3i t\u1ea3i ch\u1eef k\u00fd l\u00ean m\u00e1y ch\u1ee7 b\u00ean th\u1ee9 ba; b\u1ea3n \u0111\u1eb9p c\u00f3 th\u1ec3 t\u1ed1n ph\u00ed<\/td>\n<\/tr>\n
        K\u00fd tr\u1ef1c ti\u1ebfp tr\u00ean \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng<\/td>\nCh\u1eef k\u00fd sinh ra \u0111\u00e3 c\u00f3 n\u1ec1n trong su\u1ed1t<\/td>\nN\u00e9t ch\u1eef kh\u00e1c ch\u1eef k\u00fd tay tr\u00ean gi\u1ea5y<\/td>\n<\/tr>\n
        Photoshop, ph\u1ea7n m\u1ec1m \u0111\u1ed3 h\u1ecda<\/td>\nKi\u1ec3m so\u00e1t chi ti\u1ebft t\u1eebng n\u00e9t<\/td>\nC\u1ea7n k\u1ef9 n\u0103ng, ph\u1ea7n m\u1ec1m tr\u1ea3 ph\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        H\u01b0\u1edbng d\u1eabn t\u00e1ch n\u1ec1n \u1ea3nh n\u00f3i chung v\u00e0 danh s\u00e1ch c\u00f4ng c\u1ee5 c\u00f3 trong b\u00e0i t\u00e1ch n\u1ec1n \u1ea3nh online mi\u1ec5n ph\u00ed<\/a>.<\/p>\n

        \"xoa-nen-chu-ky-3\"<\/p>\n

        C\u00e1ch t\u1ea1o ch\u1eef k\u00fd n\u1ec1n trong su\u1ed1t tr\u00ean \u0111i\u1ec7n tho\u1ea1i<\/h2>\n

        Tr\u00ean iPhone, c\u00e1ch nhanh nh\u1ea5t l\u00e0 k\u00fd tr\u1ef1c ti\u1ebfp b\u1eb1ng c\u00f4ng c\u1ee5 \u0110\u00e1nh d\u1ea5u (Markup): m\u1edf \u1ea3nh ho\u1eb7c file PDF, ch\u1ecdn bi\u1ec3u t\u01b0\u1ee3ng b\u00fat, b\u1ea5m d\u1ea5u c\u1ed9ng \u2192 Th\u00eam ch\u1eef k\u00fd v\u00e0 k\u00fd b\u1eb1ng ng\u00f3n tay; ch\u1eef k\u00fd t\u1ea1o ra c\u00f3 n\u1ec1n trong su\u1ed1t v\u00e0 \u0111\u01b0\u1ee3c l\u01b0u \u0111\u1ec3 d\u00f9ng l\u1ea1i.<\/p>\n

          \n
        1. M\u1edf m\u1ed9t file PDF trong \u1ee9ng d\u1ee5ng T\u1ec7p ho\u1eb7c \u1ea3nh trong \u1ee9ng d\u1ee5ng \u1ea2nh.<\/li>\n
        2. B\u1ea5m bi\u1ec3u t\u01b0\u1ee3ng \u0110\u00e1nh d\u1ea5u (Markup).<\/li>\n
        3. B\u1ea5m d\u1ea5u + \u2192 Th\u00eam ch\u1eef k\u00fd, k\u00fd v\u00e0o khung r\u1ed3i b\u1ea5m Xong.<\/li>\n
        4. K\u00e9o, thu ph\u00f3ng ch\u1eef k\u00fd \u0111\u1ebfn v\u1ecb tr\u00ed c\u1ea7n k\u00fd.<\/li>\n<\/ol>\n

          Tr\u00ean Android, nhi\u1ec1u \u1ee9ng d\u1ee5ng xem PDF v\u00e0 \u1ee9ng d\u1ee5ng \u1ea3nh c\u00f3 ch\u1ee9c n\u0103ng k\u00fd t\u01b0\u01a1ng t\u1ef1; b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng c\u00f4ng c\u1ee5 x\u00f3a n\u1ec1n online tr\u00ean tr\u00ecnh duy\u1ec7t \u0111i\u1ec7n tho\u1ea1i. Xem th\u00eam c\u00e1ch x\u00f3a n\u1ec1n \u1ea3nh tr\u00ean iPhone<\/a> n\u1ebfu mu\u1ed1n t\u00e1ch n\u1ec1n \u1ea3nh ch\u1eef k\u00fd \u0111\u00e3 ch\u1ee5p.<\/p>\n

          \"xoa-nen-chu-ky-4\"<\/p>\n

          C\u00e1ch ch\u00e8n ch\u1eef k\u00fd \u0111\u00e3 x\u00f3a n\u1ec1n v\u00e0o PDF<\/h2>\n

          \u0110\u1ec3 ch\u00e8n ch\u1eef k\u00fd v\u00e0o PDF, b\u1ea1n m\u1edf file b\u1eb1ng Adobe Acrobat Reader, ch\u1ecdn \u0110i\u1ec1n v\u00e0 k\u00fd (Fill & Sign), th\u00eam ch\u1eef k\u00fd t\u1eeb \u1ea3nh PNG ho\u1eb7c v\u1ebd tr\u1ef1c ti\u1ebfp, r\u1ed3i \u0111\u1eb7t v\u00e0o v\u1ecb tr\u00ed k\u00fd. Tr\u00ean Mac, \u1ee9ng d\u1ee5ng Xem tr\u01b0\u1edbc (Preview) c\u0169ng c\u00f3 c\u00f4ng c\u1ee5 ch\u1eef k\u00fd.<\/p>\n

            \n
          1. M\u1edf file PDF b\u1eb1ng Adobe Acrobat Reader.<\/li>\n
          2. Ch\u1ecdn \u0110i\u1ec1n v\u00e0 k\u00fd (Fill & Sign) \u2192 K\u00fd (Sign) \u2192 Th\u00eam ch\u1eef k\u00fd.<\/li>\n
          3. Ch\u1ecdn H\u00ecnh \u1ea3nh \u0111\u1ec3 t\u1ea3i file PNG ch\u1eef k\u00fd \u0111\u00e3 x\u00f3a n\u1ec1n, ho\u1eb7c ch\u1ecdn v\u1ebd\/g\u00f5 ch\u1eef k\u00fd.<\/li>\n
          4. \u0110\u1eb7t ch\u1eef k\u00fd v\u00e0o v\u1ecb tr\u00ed, ch\u1ec9nh k\u00edch th\u01b0\u1edbc r\u1ed3i l\u01b0u file.<\/li>\n<\/ol>\n

            \"xoa-nen-chu-ky-5\"<\/p>\n

            Ch\u1eef k\u00fd \u1ea3nh c\u00f3 gi\u00e1 tr\u1ecb ph\u00e1p l\u00fd kh\u00f4ng?<\/h2>\n

            Ch\u1eef k\u00fd d\u1ea1ng \u1ea3nh ch\u00e8n v\u00e0o t\u00e0i li\u1ec7u ch\u1ec9 l\u00e0 h\u00ecnh \u1ea3nh, kh\u00f4ng ph\u1ea3i ch\u1eef k\u00fd s\u1ed1. V\u1edbi h\u1ee3p \u0111\u1ed3ng, h\u1ed3 s\u01a1 quan tr\u1ecdng hay giao d\u1ecbch \u0111i\u1ec7n t\u1eed c\u1ea7n x\u00e1c th\u1ef1c, b\u1ea1n n\u00ean d\u00f9ng ch\u1eef k\u00fd tay tr\u00ean b\u1ea3n gi\u1ea5y ho\u1eb7c ch\u1eef k\u00fd s\u1ed1 theo quy \u0111\u1ecbnh c\u1ee7a Lu\u1eadt Giao d\u1ecbch \u0111i\u1ec7n t\u1eed 2023.<\/p>\n